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Maven

GHSA-29qj-rvv6-qrmv

MEDIUM

Cross-site scripting in RESTEasy

Also known asCVE-2020-10688
Published
Jun 15, 2021
Updated
Feb 17, 2024
Affected
4 pkgs
Patched
4 / 4
Exploits
1 known

Blast Radius

4 pkgs affected
org.jboss.resteasy:resteasy-bomorg.jboss.resteasy:resteasy-bomorg.jboss.resteasy:resteasy-coreorg.jboss.resteasy:resteasy-core

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

A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.jboss.resteasy:resteasy-bomall versions3.11.1.Final
Mavenorg.jboss.resteasy:resteasy-bom4.0.0&&< 4.5.3.Final4.5.3.Final
Mavenorg.jboss.resteasy:resteasy-coreall versions3.11.1.Final
Mavenorg.jboss.resteasy:resteasy-core4.0.0&&< 4.5.3.Final4.5.3.Final
Exploits & PoCs
1

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

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jboss.resteasy:resteasy-bom. 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 org.jboss.resteasy:resteasy-bom to 3.11.1.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-29qj-rvv6-qrmv 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-29qj-rvv6-qrmv 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-29qj-rvv6-qrmv. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.
O3 Security · Impact-Aware SCA

Is GHSA-29qj-rvv6-qrmv in your dependencies?

O3 detects GHSA-29qj-rvv6-qrmv across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.