Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.3.18 security update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade Red Hat jose4j to 0.9.6 soon.
Data as of 1 Nov 2026, 08:20 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.9.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Upgrade org.bitbucket.b_c/jose4j to 0.9.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mavenorg.bitbucket.b_c/jose4jpkg:maven/org.bitbucket.b_c/jose4jOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released version 7.3.18 of JBoss Enterprise Application Platform containing fixes for these vulnerabilities. Users should apply this update after ensuring all previous errata are applied and backing up their systems. Detailed update instructions are available from Red Hat. No indication of alternative mitigations or that no action is required is provided, so applying the official update is recommended.
Description
Red Hat JBoss Enterprise Application Platform 7.3.18 includes security fixes addressing multiple vulnerabilities such as denial of service via malicious JSON Web Encryption tokens, HTTP server failures to reject malformed host headers leading to potential cache poisoning and SSRF, denial of service vulnerabilities with temporary files in Apache CXF, and an HTTP/2 DDoS vulnerability in Undertow. This update replaces version 7.3.17 and is rated as having an important security impact by Red Hat.
References
- access.redhat.com/errata/RHSA-2026:33371 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/7.3 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/7.3/html-single/installation_guide/index (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/7.3/html/7.3.0_release_notes/index (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2339095 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2392306 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2408784 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2423194 (opens in a new tab)
- issues.redhat.com/browse/JBEAP-31703 (opens in a new tab)
- issues.redhat.com/browse/JBEAP-33004 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_33371.json (opens in a new tab)