CVE-2026-15554Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
- 7.4HighCVSS base score
- 0.48%Exploitation in 30 daysEPSS · top 58% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP protocol.
Timeline
ID reserved
By redhat
- 29 days later
· 29 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.48% · top 58% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.
Affected products
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4.25
All versions: unaffected
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.16.0-22.redhat_00057.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.3.14-11.SP11_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:1.5.26-2.Final_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.18.8-1.redhat_00003.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:5.0.31-3.SP2_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:1.10.0-46.Final_redhat_00044.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:4.1.135-1.Final_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:4.1.135-1.Final_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.5.5-30.SP12_redhat_00020.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.5.5-24.SP12_redhat_00016.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:2.2.40-2.SP3_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- unaffected 0:7.4.25-2.GA_redhat_00001.1.el7eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.8.GA
- unaffected 2.3.26.SP3-redhat-00001 – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.40.0-8.redhat_00024.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.85.0-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.2.7-1.redhat_00002.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.5-5.redhat_00008.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.5-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.7-4.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.1.0-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.1-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.25.4-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.2.2-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:9.37.4-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.1.9-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.6-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.0.18-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.3.2-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.6-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.40.0-8.redhat_00024.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.85.0-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.2.7-1.redhat_00002.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.5-5.redhat_00008.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.5-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.7-4.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.1.0-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.1-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.25.4-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.2.2-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:9.37.4-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.1.9-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.6-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.0.18-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.3.2-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.6-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.40.0-8.redhat_00024.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.85.0-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.2.7-1.redhat_00002.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.5-5.redhat_00008.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.5-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.7-4.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.1.0-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.1-1.Final_redhat_00001.1el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.25.4-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.2.2-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:9.37.4-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.1.9-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.6-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.0.18-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.3.2-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.6-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack
All versions: unaffected
What to do
Workaround: Restrict direct TCP access to the Undertow AJP listener (default port 8009) so that only trusted reverse proxies can connect, for example by binding the AJP listener to localhost or applying firewall rules that limit access to the port to trusted hosts, since exploitation requires direct network access to the AJP port. Additionally, configure the AJP listener to require a shared secret so that AJP requests without proper authentication are rejected, as the flaw arises because forged ssl_cert and is_ssl attributes are honoured without any shared-secret authentication.
References
References8
- RHSA-2026:53644 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:53806 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70228 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70229 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70230 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70277 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-15554 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2480601 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55981 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-15554)Record last updated .