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TI-2026-13094 Aliases CVE-2026-15556GHSA-vw9v-mpfh-qwg3

Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions

Priority LOW 37CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-347.

Summary

A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00301 22nd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 2 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat JBoss Enterprise Application Platform 7.4.25——Not affectedCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.16.0-22.redhat_00057.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.3.14-11.SP11_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—1.5.26-2.Final_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.18.8-1.redhat_00003.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—5.0.31-3.SP2_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—1.10.0-46.Final_redhat_00044.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—4.1.135-1.Final_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—4.1.135-1.Final_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.5.5-30.SP12_redhat_00020.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.5.5-24.SP12_redhat_00016.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—2.2.40-2.SP3_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7—7.4.25-2.GA_redhat_00001.1.el7eapPatch availableCNA
Red HatRed Hat JBoss Enterprise Application Platform 7——No fix listedCNA
Red HatRed Hat JBoss Enterprise Application Platform 8——Not affectedCNA
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack——Not affectedCNA
  • Red Hat JBoss Enterprise Application Platform 7.4.25 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.16.0-22.redhat_00057.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.3.14-11.SP11_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 1.5.26-2.Final_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.18.8-1.redhat_00003.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 5.0.31-3.SP2_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 1.10.0-46.Final_redhat_00044.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 4.1.135-1.Final_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 4.1.135-1.Final_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.5.5-30.SP12_redhat_00020.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.5.5-24.SP12_redhat_00016.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 2.2.40-2.SP3_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 VendorRed Hat Affected — Fixed in 7.4.25-2.GA_redhat_00001.1.el7eap Patch available CNA
  • Red Hat JBoss Enterprise Application Platform 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat JBoss Enterprise Application Platform 8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat JBoss Enterprise Application Platform Expansion Pack VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 5

CPEVersionsRoleVendor
cpe:/a:redhat:jboss_enterprise_application_platform:7.47.4—Red Hat
cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el77.4—Red Hat
cpe:/a:redhat:jboss_enterprise_application_platform:77—Red Hat
cpe:/a:redhat:jboss_enterprise_application_platform:88—Red Hat
cpe:/a:redhat:jbosseapxp——Red Hat
  • cpe:/a:redhat:jboss_enterprise_application_platform:7.4 Versions 7.4 — ·Red Hat
  • cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7 Versions 7.4 — ·Red Hat
  • cpe:/a:redhat:jboss_enterprise_application_platform:7 Versions 7 — ·Red Hat
  • cpe:/a:redhat:jboss_enterprise_application_platform:8 Versions 8 — ·Red Hat
  • cpe:/a:redhat:jbosseapxp Versions — — ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2026:53806 Released 2026-08-11 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.4.25 security update
    • Red Hat JBoss Enterprise Application Platform 7.4.25
  • RHSA-2026:53646 Released 2026-08-11 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.4.25 Security update
    • Red Hat JBoss EAP 7.4 ELS for RHEL 9 eap7-activemq-artemis-2.16.0-22.redhat_00057.1.el9eap, eap7-activemq-artemis-cli-2.16.0-22.redhat_00057.1.el9eap, eap7-activemq-artemis-commons-2.16.0-22.redhat_00057.1.el9eap +47
  • RHSA-2026:53645 Released 2026-08-11 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.4.25 Security update
    • Red Hat JBoss EAP 7.4 ELS for RHEL 8 eap7-activemq-artemis-2.16.0-22.redhat_00057.1.el8eap, eap7-activemq-artemis-cli-2.16.0-22.redhat_00057.1.el8eap, eap7-activemq-artemis-commons-2.16.0-22.redhat_00057.1.el8eap +47
Show 1 more Red Hat advisories
  • RHSA-2026:53644 Released 2026-08-11 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.4.25 security pdate
    • Red Hat JBoss EAP 7.4 ELS for RHEL 7 Server eap7-activemq-artemis-2.16.0-22.redhat_00057.1.el7eap, eap7-activemq-artemis-cli-2.16.0-22.redhat_00057.1.el7eap, eap7-activemq-artemis-commons-2.16.0-22.redhat_00057.1.el7eap +47

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 and 3 more products — RHSA-2026:53644

    10 records Highest priority Priority MEDIUM 6 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-09097 Picketlink-federation: auth bypass in picketlink saml unsolicited-responsePriority MEDIUM 49
    • TI-2026-13093 Deserialization of untrusted data in Red Hat JBoss Enterprise Application Platform 7.4.25Priority MEDIUM 42
    • TI-2026-13103 Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth denial of service on the iiop listenerPriority MEDIUM 41
    Show all 10 records → Advisory →
  • Advisory ·

    Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 and 3 more products — RHSA-2026:53806

    10 records Highest priority Priority MEDIUM 6 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-09097 Picketlink-federation: auth bypass in picketlink saml unsolicited-responsePriority MEDIUM 49
    • TI-2026-13093 Deserialization of untrusted data in Red Hat JBoss Enterprise Application Platform 7.4.25Priority MEDIUM 42
    • TI-2026-13103 Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth denial of service on the iiop listenerPriority MEDIUM 41
    Show all 10 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform 7AffectedNo fix yet
Red Hat JBoss EAP 7.4 ELS for RHEL 7 ServerFixed RHSA-2026:53644
Red Hat JBoss Enterprise Application Platform 7.4.25Fixed RHSA-2026:53806
Not affected: 2 products
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-15556
  2. 2026-10-03 Alias added: GHSA-vw9v-mpfh-qwg3
  3. 2026-10-20 Affected versions changed · CNA
  4. 2026-10-20 Affected versions changed · CNA
  5. 2026-10-21 Affected versions changed · Red Hat
  6. 2026-10-26 Affected versions changed · CNA
  7. 2026-10-26 Affected versions changed · Red Hat
  8. 2026-11-01 Affected versions changed · CNA
  9. 2026-11-01 Affected versions changed · Red Hat

References

Advisory 2

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences