Description
JacksonJsonpInterceptor in RESTEasy might allow remote attackers to conduct a cross-site script inclusion (XSSI) attack.
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-9xfc-j5mf-9w5p |
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