CVE-2026-58061: CWE-354 Improper Validation of Integrity Check Value in Legion of the Bouncy Castle Inc. BC-JAVA
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).
CVE-2026-58061: CWE-354 Improper Validation of Integrity Check Value in Legion of the Bouncy Castle Inc. BC-JAVA
Description
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).
CVSS v4.0
Score 8.7high
Affected software
pkg:github/bcprov-lts8onRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- bcorg
- Date Reserved
- 2026-06-28T01:21:46.334Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700186bf32cb7a34d5cb11
Added to database: 08/03/2026, 02:48:38 UTC
Last updated: 08/03/2026, 02:48:38 UTC
Views: 1
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