Bug 2524916

Summary: CVE-2026-12817 bouncycastle: Bouncy Castle for Java: Integrity bypass in OpenPGP AEAD decryption [fedora-all]
Product: [Fedora] Fedora Reporter: Sandipan Roy <saroy>
Component: bouncycastleAssignee: Mat Booth <mat.booth>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: mat.booth, mattias.ellert
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["43f4423c-42e6-457f-95de-5eb67e62f649"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2510253    

Description Sandipan Roy 2026-08-27 10:45:29 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, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).