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GHSA-f7cq-5v43-8pwp

MEDIUM

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

Also known asGO-2024-2880
Published
May 23, 2024
Updated
Feb 4, 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.