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Maven

GHSA-crjg-w57m-rqqf

MEDIUM

DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks

Published
Jul 22, 2024
Updated
Feb 4, 2026
Affected
2 pkgs
Patched
1 / 2
Exploits
None indexed

Blast Radius

2 pkgs affected
dnsjava:dnsjavaorg.jitsi:dnssecjava

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

Description

Impact

Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones.

Patches

Users should upgrade to dnsjava v3.6.0

Workarounds

Although not recommended, only using a non-validating resolver, will remove the vulnerability.

References

https://www.athene-center.de/en/keytrap

Affected Packages

2 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavendnsjava:dnsjava3.5.0&&< 3.6.03.6.0
Mavenorg.jitsi:dnssecjavaall 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 dnsjava:dnsjava. 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 dnsjava:dnsjava to 3.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-crjg-w57m-rqqf 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-crjg-w57m-rqqf 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-crjg-w57m-rqqf. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact Users using the `ValidatingResolver` for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones. ### Patches Users should upgrade to dnsjava v3.6.0 ### Workarounds Although not recommended, only using a non-validating resolver, will remove the vulnerability. ### References https://www.athene-center.de/en/keytrap
O3 Security · Impact-Aware SCA

Is GHSA-crjg-w57m-rqqf in your dependencies?

O3 detects GHSA-crjg-w57m-rqqf across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.