CVE-2026-58061
In Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber
- EPSS probability
- 0.28%
- CWE
- CWE-354
- Published
- 2026-08-03
- Last modified
- 2026-08-03
Affected products
- Legion of the Bouncy Castle Inc. BC-JAVA
- Legion of the Bouncy Castle Inc. BC-LTS-JAVA
- Legion of the Bouncy Castle Inc. BC-FJA
- Legion of the Bouncy Castle Inc. BC-FJA
- Legion of the Bouncy Castle Inc. BC-FJA
Weakness type
Related vulnerabilities
- CVE-2026-72929 — Windows Installer Elevation of Privilege Vulnerability
- CVE-2026-20354 — Cisco Secure Email S/MIME Ciphertext Decryption Vulnerabilty
- CVE-2026-82549 — Linux Foundation Magma SecurityModeComplete integrity check
- CVE-2026-75803 — AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()
- CVE-2026-75625 — Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass
- CVE-2026-12817 — OpenPGP AEAD decryption skips final tag on chunk-aligned data
- CVE-2026-12816 — IESEngine stream-mode MAC forgery via length-dependent KDF split
- CVE-2026-12803 — KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery)