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).
Metrics
Affected Vendors & Products
References
History
Mon, 03 Aug 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Legion Of The Bouncy Castle Inc.
Legion Of The Bouncy Castle Inc. bc-fja Legion Of The Bouncy Castle Inc. bc-java Legion Of The Bouncy Castle Inc. bc-lts-java |
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| Vendors & Products |
Legion Of The Bouncy Castle Inc.
Legion Of The Bouncy Castle Inc. bc-fja Legion Of The Bouncy Castle Inc. bc-java Legion Of The Bouncy Castle Inc. bc-lts-java |
Mon, 03 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 03 Aug 2026 05:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
Mon, 03 Aug 2026 01:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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). | |
| Title | CMS verifySignatures returns true for SignedData with zero signers | |
| Weaknesses | CWE-347 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: bcorg
Published:
Updated: 2026-08-03T13:24:16.359Z
Reserved: 2026-07-06T06:58:29.263Z
Link: CVE-2026-59639
Updated: 2026-08-03T13:24:12.555Z
No data.
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OpenCVE Enrichment
Updated: 2026-08-03T15:52:22Z