CVE-2026-59643

OpenPGP inline-signature policy failures silently ignored

State: Published
Severity: 8.7 High
Published: Aug 3, 2026
Updated: Aug 3, 2026
Reserved: Jul 6, 2026

Description

In Bouncy Castle for Java before 1.85, OpenPGP inline-signature policy failures silently ignored. This issue also affects Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 2.0.13.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	bcorg

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
BC-JAVALegion of the Bouncy Castle Inc.	1.81 to before 1.85Affected
BC-FJALegion of the Bouncy Castle Inc.	2.0.12 to before 2.0.13Affected

References

https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059643vendor-advisory
https://github.com/bcgit/bc-java/commit/d3f8cc408b4a36d28e5a410c93436fe3d0fe726bpatch

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