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GHSA-f7cq-5v43-8pwp

MEDIUM

GHSA-f7cq-5v43-8pwp is a medium-severity (CVSS 5.3) vulnerability in github.com/traefik/traefik/v2. O3 Security confirms whether GHSA-f7cq-5v43-8pwp is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Traefik vulnerable to GO issue allowing malformed DNS message to cause infinite loop

Also known asGO-2024-2880
Published
May 23, 2024
Updated
Aug 7, 2026
Affected
3 pkgs
Patched
2 / 3
Exploits
None indexed

Blast Radius

3 pkgs affected
🐹github.com/traefik/traefik/v2🐹github.com/traefik/traefik/v3🐹github.com/traefik/traefik

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

Impact

There is a vulnerability in GO managing malformed DNS message, which impacts Traefik. This vulnerability could be exploited to cause a denial of service.

References

Patches

Workarounds

No workaround.

For more information

If you have any questions or comments about this advisory, please open an issue.

Affected Packages

3 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/traefik/traefik/v2all versions2.11.3
🐹Gogithub.com/traefik/traefik/v3all versions3.0.1
🐹Gogithub.com/traefik/traefikall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/traefik/traefik/v2. 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 github.com/traefik/traefik/v2 to 2.11.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-f7cq-5v43-8pwp 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-f7cq-5v43-8pwp 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-f7cq-5v43-8pwp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact There is a vulnerability in [GO managing malformed DNS message](https://groups.google.com/g/golang-announce/c/wkkO4P9stm0), which impacts Traefik. This vulnerability could be exploited to cause a denial of service. ### References - [CVE-2024-24788](https://www.cve.org/CVERecord?id=CVE-2024-24788) ### Patches - https://github.com/traefik/traefik/releases/tag/v2.11.3 - https://github.com/traefik/traefik/releases/tag/v3.0.1 ### Workarounds No workaround. ### For more information If you have any questions or comments about this advisory, please [open an issue](https://github.co
O3 Security · Impact-Aware SCA

Is GHSA-f7cq-5v43-8pwp in your dependencies?

O3 detects GHSA-f7cq-5v43-8pwp across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.