BKS/UBER keystore allocates from untrusted lengths before integrity check

CISA ADP · SSVC 2.0.3

Exploitation

None

Automatable

No

Technical impact

Partial

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

• BC-JAVA VendorLegion of the Bouncy Castle Inc. Affected before 1.85 Fixed in 1.85 Patch available CNA
• BC-LTS-JAVA VendorLegion of the Bouncy Castle Inc. Affected 2.73.0 to before 2.73.12 Fixed in 2.73.12 Patch available CNA

• Fix · CNA BC-JAVA (Legion of the Bouncy Castle Inc.) Fixed in 1.85
• Fix · CNA BC-LTS-JAVA (Legion of the Bouncy Castle Inc.) Fixed in 2.73.12

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

• Release · 2026-08-03

  Legion of the Bouncy Castle BC-JAVA 1.85

  32 records · Highest priority Priority MEDIUM · 23 MEDIUM, 9 LOW

  Other records, highest priority first

  • TI-2026-42545 MTI/A0 DH agreement exponentiates unvalidated peer valuePriority MEDIUM 48
  • TI-2026-42533 JSSE hostname verifier CN-fallback enabled by default despite documented opt-inPriority MEDIUM 48
  • TI-2026-41816 Stapled OCSP response accepted without binding to the checked certificatePriority MEDIUM 48
  Show all 32 records →
• Release · 2026-08-03

  Legion of the Bouncy Castle BC-LTS-JAVA 2.73.12

  28 records · Highest priority Priority MEDIUM · 20 MEDIUM, 8 LOW

  Other records, highest priority first

  • TI-2026-42545 MTI/A0 DH agreement exponentiates unvalidated peer valuePriority MEDIUM 48
  • TI-2026-42533 JSSE hostname verifier CN-fallback enabled by default despite documented opt-inPriority MEDIUM 48
  • TI-2026-41816 Stapled OCSP response accepted without binding to the checked certificatePriority MEDIUM 48
  Show all 28 records →

1. 2026-10-02 Threatist record created from CVE-2026-12185
2. 2026-10-03 Alias added: GHSA-9mmj-j2r4-96mp
3. 2026-10-15 Affected versions changed · Red Hat
4. 2026-10-16 Affected versions changed · Red Hat
5. 2026-10-21 Fix available: RHSA-2026:70277 · Red Hat
6. 2026-10-21 Fix available: Red Hat JBoss Enterprise Application Platform 8.1.8.GA · Red Hat
7. 2026-10-23 Fix available: RHSA-2026:88149 · Red Hat
8. 2026-10-23 Fix available: RHSA-2026:88152 · Red Hat
9. 2026-10-23 Fix available: RHSA-2026:88150 · Red Hat
10. 2026-10-23 Fix available: RHSA-2026:88156 · Red Hat
11. 2026-10-23 Fix available: RHSA-2026:88153 · Red Hat
12. 2026-10-23 Fix available: RHSA-2026:88154 · Red Hat
13. 2026-10-23 Fix available: RHSA-2026:88157 · Red Hat
14. 2026-10-23 Fix available: RHSA-2026:88155 · Red Hat
15. 2026-10-23 Fix available: RHSA-2026:88151 · Red Hat
16. 2026-10-23 Fix available: RHSA-2026:88158 · Red Hat
17. 2026-10-23 Fix available: RHSA-2026:88159 · Red Hat
18. 2026-10-23 Fix available: OpenShift Developer Tools and Services 4.12, OpenShift Developer Tools and Services 4.13, OpenShift Developer Tools and Services 4.14 +8 · Red Hat
19. 2026-10-30 Fix available: RHSA-2026:90321 · Red Hat
20. 2026-10-30 Fix available: Red Hat OpenShift Dev Spaces 3.31 · Red Hat
21. 2026-11-03 Affected versions changed · Red Hat
22. 2026-11-06 Affected versions changed · Red Hat

• TI-2018-15967 Legion of the Bouncy Castle Legion of the Bouncy Castle Java Cryptography APIs 1.58 up to… CVSS 3.1CRITICAL 9.8
• TI-2017-09736 BouncyCastle JCE TLS Bleichenbacher/ROBOT CVSS 3.0HIGH 7.5
• TI-2026-42545 MTI/A0 DH agreement exponentiates unvalidated peer value CVSS 4.0CRITICAL 9.3
• TI-2026-42533 JSSE hostname verifier CN-fallback enabled by default despite documented opt-in CVSS 4.0CRITICAL 9.3
• TI-2026-41816 Stapled OCSP response accepted without binding to the checked certificate CVSS 4.0CRITICAL 9.3
• TI-2026-07701 Name Constraints bypass via trailing dot in rfc822Name and URI CVSS 4.0CRITICAL 9.3

• CVE-2026-12185 · CVE Program
• CVE-2026-12185 · NVD
• FIRST EPSS
• GHSA-9mmj-j2r4-96mp · GitHub Advisory Database · CC BY 4.0
• CVE-2026-12185 · Red Hat security data · CC BY 4.0

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