Bug 2533199 - CVE-2026-12860 bouncycastle: Bouncy Castle for Java: Cryptographic signature bypass in RSA PKCS#1 verification [epel-all]
Summary: CVE-2026-12860 bouncycastle: Bouncy Castle for Java: Cryptographic signature ...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: bouncycastle
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Gianluca Sforna
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["23943df5-06e2-41f2-aba4-1...
Depends On:
Blocks: CVE-2026-12860
TreeView+ depends on / blocked
 
Reported: 2026-09-14 17:02 UTC by Joel Chamberlain
Modified: 2026-09-14 17:02 UTC (History)
3 users (show)

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

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Description Joel Chamberlain 2026-09-14 17:02:37 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, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
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