CVE-2026-12185
HighCVSS 8.6Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
In Bouncy Castle for Java before 1.85, the BKS/UBER keystore allocates memory from untrusted lengths before integrity check. This issue also affects LTS before 2.73.12.
Risk Assessment
An attacker can cause excessive memory consumption (DoS) by providing a crafted keystore file.
Recommendation
Update Bouncy Castle to version 1.85 or later, and for LTS to 2.73.12 or later.
Other vulnerabilities in Bouncy Castle
See all- CVE-2026-58062Critical
In Bouncy Castle for Java before 1.85, a Stapled OCSP response is accepted without binding to the checked certificate. This issue also affects LTS before 2.73.12 and FIPS before 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).
- CVE-2026-8763Critical
In Bouncy Castle for Java before 1.85, Name Constraints can be bypassed via a trailing dot in rfc822Name and URI. This issue also affects LTS before 2.73.12 and FIPS before appropriate versions.
- CVE-2026-59650Critical
In Bouncy Castle for Java before 1.85, the MTI/A0 Diffie-Hellman key agreement exponentiates an unvalidated peer value. This issue also affects LTS before 2.73.12.
- CVE-2026-14682High
In Bouncy Castle for Java before 1.85, a possible Out-of-Memory (OOM) condition exists due to unbounded up-front allocation on a definite-length read. This issue also affects LTS and FIPS versions.
- CVE-2026-13586High
In Bouncy Castle for Java before 1.85, the PKCS#12 MAC and bag-decryption KDF iteration-count bound can lead to DoS. This issue also affects LTS before 2.73.12 and BC-FJA before specific versions.
- CVE-2026-13506High
In Bouncy Castle for Java before 1.85, a Lazy ASN.1 sequence forces resetting the nesting-depth guard. This issue also affects LTS and FIPS versions.
- CVE-2026-12860Medium
In Bouncy Castle for Java before 1.85, RSA PKCS#1 signature verification skips the last two hash bytes in the NULL-omitted path. This issue also affects LTS before 2.73.12.
- CVE-2026-12852High
In Bouncy Castle for Java before 1.85, the MLS wire decoder allocates attacker-declared opaque length before bounds check.
- CVE-2026-12817High
In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips the final tag on chunk-aligned data. This issue also affects LTS and FIPS versions.
- CVE-2026-12816High
In Bouncy Castle for Java before 1.85, the IESEngine in stream mode allows MAC forgery via length-dependent KDF split. This issue also affects LTS before 2.73.12.
Original NVD description (English source)
In Bouncy Castle for Java before 1.85, BKS/UBER keystore allocates from untrusted lengths before integrity check. This issue also affects Bouncy Castle for Java LTS before 2.73.12.