Bug 2524924 - CVE-2026-59641 bouncycastle: Bouncy Castle for Java: S/MIME signature validation bypass via signer-asserted signing time [fedora-all]
Summary: CVE-2026-59641 bouncycastle: Bouncy Castle for Java: S/MIME signature validat...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: bouncycastle
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Mat Booth
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["5a755c3c-d641-4b67-84b3-2...
Depends On:
Blocks: CVE-2026-59641
TreeView+ depends on / blocked
 
Reported: 2026-08-27 10:46 UTC by Sandipan Roy
Modified: 2026-08-27 10:46 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Sandipan Roy 2026-08-27 10:46:05 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0.7 (1.0.X series), 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series).
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