How severe is CVE-2026-25895?

No CVSS score has been assigned to CVE-2026-25895 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-25895?

CVE-2026-25895 affects the following packages: fuxa-server (npm). Ecosystems affected: npm.

How do I fix CVE-2026-25895?

Update fuxa-server to 1.2.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25895 is resolved across your whole dependency graph.

How do I detect CVE-2026-25895 in my npm dependencies?

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

How do I mitigate CVE-2026-25895 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2026-25895?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-25895 can be triaged on real exposure rather than presence alone.

Is CVE-2026-25895 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2026-25895, including 1 documented proof-of-concept exploit on Exploit-DB. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2026-25895?

CVE-2026-25895 has an EPSS (Exploit Prediction Scoring System) score of 11.2%, placing it in the 96th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

What type of vulnerability is CVE-2026-25895?

CVE-2026-25895 is classified as Path Traversal (CWE-22), Missing Authentication (CWE-306). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for CVE-2026-25895?

A Nuclei detection template exists for CVE-2026-25895, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2026-25895 published, and has it been updated?

CVE-2026-25895 was published on February 9, 2026 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2026-25895 — fuxa-server

Fix: frangoteam/FUXA@22c2192

CVE-2026-25895 is a Path Traversal vulnerability in fuxa-server. 1 public exploit reference exists, so weaponization risk is real. A fix is available for fuxa-server — see the affected versions and patch details below.

FUXA Unauthenticated Remote Code Execution via Arbitrary File Write in Upload API

Also known asGHSA-88qh-cphv-996c

Published

Feb 9, 2026

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-25895.

EPSS Exploitation Probability

via FIRST.org ↗

11.2%probability of exploitation in next 30 days

Moderate Risk0.00%

Lower risk than most CVEs96th percentile — riskier than 96% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

fuxa-servernpm

11downloads / week

Description

Summary

Description A path traversal vulnerability in FUXA allows an unauthenticated, remote attacker to write arbitrary files to arbitrary locations on the server filesystem. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10.

Impact

This affects all deployments, including those with runtime.settings.secureEnabled set to true.

Exploitation allows an unauthenticated, remote attacker to overwrite application and system files. If the attacker can overwrite application code, startup scripts, or configuration files that are later executed/loaded, RCE is likely. Depending on deployment configuration and permissions, this may lead to full system compromise and could further expose connected ICS/SCADA environments to follow-on actions.

Patches

This issue has been patched in FUXA version 1.2.10. Users are strongly encouraged to update to the latest available release.

Notes

GitHub stated this vulnerability is identical to CVE-2025-69981, which was published against the repository out of band before coordinated disclosure concluded. CVE-2025-69981 describes a "CWE-434: Unrestricted Upload of File with Dangerous Type" vulnerability. While a CWE-434 is present, it was an unsafe, intended feature of the application that has been locked behind authentication. This report describes a "CWE-35: Path Traversal" that enables an arbitrary file write.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`fuxa-server`	all versions	1.2.10`npm install fuxa-server@1.2.10`

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-52568webappsmultiple

FUXA 1.2.9 - RCE

by Anthony Cihan · May 21, 2026

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for fuxa-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update fuxa-server to 1.2.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25895 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-25895 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-25895. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

How to detect CVE-2026-25895

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2026-25895 -u https://target

Template: FUXA <= 1.2.9 - Unauthenticated Path Traversal to Arbitrary File Write
Severity: critical
Impact: Unauthenticated attackers can write arbitrary files anywhere on the filesystem reachable by the service account, including the public web root, cron directories, and SSH authorized_keys, leading to full remote code execution on the host running FUXA.
Remediation: Upgrade FUXA to version 1.2.10 or later, which validates and contains the `destination` parameter to the intended application directory and requires administrator authentication on /api/upload.

Template by ProjectDiscovery nuclei-templates (prithvee07), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

### Summary **Description** A path traversal vulnerability in FUXA allows an unauthenticated, remote attacker to write arbitrary files to arbitrary locations on the server filesystem. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10. ### Impact This affects all deployments, including those with `runtime.settings.secureEnabled` set to `true`. Exploitation allows an unauthenticated, remote attacker to overwrite application and system files. If the attacker can overwrite application code, startup scripts, or configuration files that are later executed/

O3 Security · Impact-Aware SCA

Is CVE-2026-25895 in your dependencies?

O3 Security finds CVE-2026-25895 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

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