This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-59639 →

DEBIAN-CVE-2026-59639

In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for J...

Original description

The description as published by the source.

In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 bouncycastle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 bouncycastle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 bouncycastle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.86-1"}]}]

References

advisory security-tracker.debian.org