CVE-2026-15554— Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
Quick assessment
Affected
Red Hat Red Hat JBoss Enterprise Application Platform 7.4.25
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Undertow是美国Undertow社区开源的一个用 Java 编写的灵活、高性能的 Web 服务器。 Undertow存在加密问题漏洞，该漏洞源于Undertow AJP监听器无需共享密钥认证即信任伪造的ssl_cert和is_ssl AJP属性，可能导致未经身份验证的攻击者通过TCP 8009端口注入伪造的X.509证书，绕过CLIENT-CERT认证。
Affected Version Matrix 177
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | any |
affected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.16.0-22.redhat_00057.1.el7eap< * |
unaffected |
0:2.3.14-11.SP11_redhat_00001.1.el7eap< * |
unaffected | ||
0:1.5.26-2.Final_redhat_00001.1.el7eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el7eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el7eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el7eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el7eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el7eap< * |
unaffected | ||
| … +9 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.16.0-22.redhat_00057.1.el8eap< * |
unaffected |
0:2.3.14-11.SP11_redhat_00001.1.el8eap< * |
unaffected | ||
0:1.5.26-2.Final_redhat_00001.1.el8eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el8eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el8eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el8eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el8eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el8eap< * |
unaffected | ||
| … +9 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | 0:2.16.0-22.redhat_00057.1.el9eap< * |
unaffected |
0:2.3.14-11.SP11_redhat_00001.1.el9eap< * |
unaffected | ||
0:1.5.26-2.Final_redhat_00001.1.el9eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el9eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el9eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el9eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el9eap< * |
unaffected | ||
0:2.18.8-1.redhat_00003.1.el9eap< * |
unaffected | ||
| … +9 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4.25 | 2.2.40.SP3-redhat-00001< * |
unaffected |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | 0:2.40.0-8.redhat_00024.1.el10eap< * |
unaffected |
0:4.1.7-1.SP1_redhat_00001.1.el10eap< * |
unaffected | ||
0:2.0.5-1.Final_redhat_00001.1.el10eap< * |
unaffected | ||
0:1.85.0-1.redhat_00001.1.el10eap< * |
unaffected | ||
0:1.2.7-1.redhat_00002.1.el10eap< * |
unaffected | ||
0:801.8.0-1.GA_redhat_00001.1.el10eap< * |
unaffected | ||
0:6.6.54-1.Final_redhat_00001.1.el10eap< * |
unaffected | ||
0:4.1.5-5.redhat_00008.1.el10eap< * |
unaffected | ||
| … +33 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | 0:2.40.0-8.redhat_00024.1.el8eap< * |
unaffected |
0:4.1.7-1.SP1_redhat_00001.1.el8eap< * |
unaffected | ||
0:2.0.5-1.Final_redhat_00001.1.el8eap< * |
unaffected | ||
0:1.85.0-1.redhat_00001.1.el8eap< * |
unaffected | ||
0:1.2.7-1.redhat_00002.1.el8eap< * |
unaffected | ||
0:801.8.0-1.GA_redhat_00001.1.el8eap< * |
unaffected | ||
0:6.6.54-1.Final_redhat_00001.1.el8eap< * |
unaffected | ||
0:4.1.5-5.redhat_00008.1.el8eap< * |
unaffected | ||
| … +33 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | 0:2.40.0-8.redhat_00024.1.el9eap< * |
unaffected |
0:4.1.7-1.SP1_redhat_00001.1.el9eap< * |
unaffected | ||
0:2.0.5-1.Final_redhat_00001.1.el9eap< * |
unaffected | ||
0:1.85.0-1.redhat_00001.1.el9eap< * |
unaffected | ||
0:1.2.7-1.redhat_00002.1.el9eap< * |
unaffected | ||
0:801.8.0-1.GA_redhat_00001.1.el9eap< * |
unaffected | ||
0:6.6.54-1.Final_redhat_00001.1.el9eap< * |
unaffected | ||
0:4.1.5-5.redhat_00008.1.el9eap< * |
unaffected | ||
| … +33 more rows | |||
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | any |
unaffected |
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-15554
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Undertow 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Undertow是美国Undertow社区开源的一个用 Java 编写的灵活、高性能的 Web 服务器。 Undertow存在加密问题漏洞，该漏洞源于Undertow AJP监听器无需共享密钥认证即信任伪造的ssl_cert和is_ssl AJP属性，可能导致未经身份验证的攻击者通过TCP 8009端口注入伪造的X.509证书，绕过CLIENT-CERT认证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4.25 | 2.2.40.SP3-redhat-00001 ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform:7.4
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.16.0-22.redhat_00057.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.3.14-11.SP11_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:1.5.26-2.Final_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.18.8-1.redhat_00003.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:5.0.31-3.SP2_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:1.10.0-46.Final_redhat_00044.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:4.1.135-1.Final_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:4.1.135-1.Final_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.5.5-30.SP12_redhat_00020.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.5.5-24.SP12_redhat_00016.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:2.2.40-2.SP3_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | 0:7.4.25-2.GA_redhat_00001.1.el7eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.16.0-22.redhat_00057.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.3.14-11.SP11_redhat_00001.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:1.5.26-2.Final_redhat_00001.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:2.18.8-1.redhat_00003.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:5.0.31-3.SP2_redhat_00001.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:1.10.0-46.Final_redhat_00044.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | 0:4.1.135-1.Final_redhat_00001.1.el8eap ~ * |
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el8
|
|
II. Public POCs for CVE-2026-15554
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-15554
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-15554 (10)
-
-
🔗 2480601 – (CVE-2026-15554) CVE-2026-15554 undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery Read full article issue-tracking x_refsource_REDHAT
-
-
-
-
🔗 RHSA-2026:53646 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
-
-
🔗 RHSA-2026:53645 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
-
🔗 RHSA-2026:70230 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
-
🔗 RHSA-2026:53644 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
Same Patch Batch · Red Hat · 2026-08-11 · 29 CVEs total
| CVE-2026-10579 | 9.8 CRITICAL | Picketlink-federation: auth bypass in picketlink saml unsolicited-response |
| CVE-2026-19546 | 8.8 HIGH | Dbi: incomplete fix for cve-2026-14380 dbi: arbitrary code execution via caller-influenced |
| CVE-2026-15555 | 8.8 HIGH | Jboss-marshalling-river: wildfly-clustering-infinispan-marshalling: jboss deserialization |
| CVE-2026-19550 | 8.2 HIGH | Freeipa: ipa: freeipa: trust-fetch-domains uses trust-read aci to gate a privileged ad tru |
| CVE-2026-15556 | 8.1 HIGH | Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions |
| CVE-2026-15560 | 8.1 HIGH | Openjdk-orb: unauthed class loading via iiop in eap |
| CVE-2026-72693 | 7.8 HIGH | Kbd: local privilege escalation in openvt via incorrect process owner verification allowin |
| CVE-2026-15567 | 7.5 HIGH | Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth denial of service on the iiop lis |
| CVE-2026-71467 | 7.5 HIGH | Acm-search-v2-api-rhel9: search-v2-api: authentication bypass on /federated via upgrade: w |
| CVE-2026-71217 | 7.5 HIGH | Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote de |
| CVE-2026-15565 | 7.5 HIGH | Undertow: undertow-websockets: undertow: pre-auth dos on websocket endpoint with @serveren |
| CVE-2026-15561 | 7.5 HIGH | Undertow-core: oom via missing limits in chunked trailer in eap's undertow |
| CVE-2026-15562 | 7.5 HIGH | Jboss-remoting: jboss-remoting: integer overflow in messagereader leads to pre-authenticat |
| CVE-2026-15563 | 7.4 HIGH | Wildfly-iiop-openjdk: missing authentication on eap's iiop nameservice leads to mitm or do |
| CVE-2026-50237 | 7.4 HIGH | Openshift/console: namespace tenant ssrf with egress bypass, catalog poisoning, and admin- |
| CVE-2026-50236 | 7.4 HIGH | Openshift/console: authenticated ssrf with full response reflection and path neutralizatio |
| CVE-2026-72694 | 7.1 HIGH | Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file p |
| CVE-2026-71474 | 7.1 HIGH | Insights-client-rhel9: insights-client: pull-secret bearer token written to logs on non-20 |
| CVE-2026-71475 | 6.8 MEDIUM | Insights-client-rhel9: insights-client: spoke-controlled clusterid injected unencoded into |
| CVE-2026-24330 | 6.5 MEDIUM | Wildfly-core: wildfly: arbitrary file read via malicious archive deployment |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Red Hat JBoss Enterprise Application Platform 7.4.25
-
CVE-2026-101292
Artemis-core-client: unsafe reflection in apache activemq ar -
CVE-2026-86404
Artemis-server: artemis-jms-client: artemis-core-client: und -
CVE-2026-15567
Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth den -
CVE-2026-15565
Undertow: undertow-websockets: undertow: pre-auth dos on web -
CVE-2026-15563
Wildfly-iiop-openjdk: missing authentication on eap's iiop n
Same vendor: Red Hat
-
CVE-2026-104988
Pki-core: dogtag-pki: redhat-pki: pki: est fullcmc authentic -
CVE-2026-95512
Freetype: freetype: denial of service via repeated subroutin -
CVE-2026-86345
389-ds-base: 389-ds-base: starttls plaintext-buffer retentio -
CVE-2026-86344
389-ds-base: 389-ds-base: unauthenticated worker-thread-pool -
CVE-2026-103884
Keycloak-services: keycloak-services: path traversal in x.50
Same weakness: CWE-295
-
CVE-2026-85088
Apache Thrift, Apache Thrift: The C++ and D clients fall bac -
CVE-2026-85087
Apache Thrift: Python ≥3.12 host-name check silently becomes -
CVE-2026-85086
Apache Thrift: Perl TLS client disables certificate verifica -
CVE-2026-80443
Insecure TLS Certificate Validation in API Tool Runner in HA -
CVE-2026-103602
Name constraints bypass via trailing dot in rfc822Name, dNSN
V. Comments for CVE-2026-15554
No comments yet