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
Fri, 28 Aug 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Bouncycastle
Bouncycastle bc-java Bouncycastle bcpkix-fips Bouncycastle bouncy Castle For Java Lts |
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| CPEs | cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:* cpe:2.3:a:bouncycastle:bcpkix-fips:*:*:*:*:*:*:*:* cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:*:*:*:*:*:*:*:* |
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| Vendors & Products |
Bouncycastle
Bouncycastle bc-java Bouncycastle bcpkix-fips Bouncycastle bouncy Castle For Java Lts |
|
| Metrics |
cvssV3_1
|
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: 2026-08-03T00:56:24.394Z
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
Status : Analyzed
Published: 2026-08-03T01:16:43.700
Modified: 2026-08-28T15:33:16.413
Link: CVE-2026-59639
No data.