# CVE-2026-59642: CMS AuthenticatedData content not bound to MAC when authAttrs present

> CVE-2026-59642: CMS AuthenticatedData content not bound to MAC when authAttrs present. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-59642
Last updated: 2026-08-28T18:12:17Z

- Published: 2026-08-03 00:53 UTC · Updated: 2026-08-28 18:12 UTC · Assigner: bcorg
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS: 0.30%, 23th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-354

## Description

In Bouncy Castle for Java before 1.85, CMS AuthenticatedData content not bound to MAC when authAttrs present. 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).

## Affected vendors and products

- 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

## Tracked companies

- [Confluence](https://rewindex.com/company/confluence.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-59642)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-59642)
- [https://github.com/bcgit/bc-java/commit/2117f316a5a47308f3e569695a6592b16aac0dd7](https://github.com/bcgit/bc-java/commit/2117f316a5a47308f3e569695a6592b16aac0dd7)
- [https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059642](https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059642)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-59642 · Markdown: https://rewindex.com/cve/CVE-2026-59642.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-59642 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:02.748Z