Description
Cross-site scripting (XSS) vulnerability in the default exception handler in RESTEasy allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | resteasy3.0 | 3.0.26-1 | — |
| Debian 13 | resteasy3.0 | 3.0.26-1 | — |
| Debian 12 | resteasy3.0 | 3.0.26-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | resteasy3.0 | 3.0.26-6ubuntu0.24.04.1 | USN-7630-1 |
| Ubuntu 22.04 LTS | resteasy3.0 | 3.0.26-3ubuntu0.1 | USN-7630-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | resteasy3.0 | 3.0.26-1ubuntu0.1~esm1 | USN-7630-1 |
| Ubuntu Pro 18.04 LTS | resteasy3.0 | 3.0.26-1~18.04.1~esm1 | USN-7630-1 |
| Ubuntu Pro 16.04 LTS | resteasy | 3.0.6-3ubuntu0.1~esm1 | USN-7630-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jboss.resteasy:resteasy-client | < 3.0.20.Final | 3.0.20.Final | GHSA-r346-rmrg-qpgh |
| Maven | org.jboss.resteasy:resteasy-client | >= 3.1.0.Beta1, < 3.1.0.CR1 | 3.1.0.CR1 | GHSA-r346-rmrg-qpgh |
Advisories 2
- USN-7630-1 resteasy, resteasy3.0 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026