CVE-2026-59647 - Vulnerability Details - OpenCVE

In Bouncy Castle for Java before 1.85, CRMF/CMP password-MAC honours unbounded iteration count. 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).

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00263.

Exploitation none

Automatable yes

Technical Impact partial

No data.

No data.

No data.

No data.

References

Link	Providers
https://github.com/bcgit/bc-java/commit/c99d6427d6818d04165b07b45dfda96f2b384c53
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059647

History

Mon, 03 Aug 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 03 Aug 2026 05:30:00 +0000

Type	Values Removed	Values Added
References	https://github.com/bcgit/bc-java/wiki/CVE-2026-59647	https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059647

Mon, 03 Aug 2026 01:15:00 +0000

Type	Values Removed	Values Added
Description		In Bouncy Castle for Java before 1.85, CRMF/CMP password-MAC honours unbounded iteration count. 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		CRMF/CMP password-MAC honours unbounded iteration count
Weaknesses		CWE-770
References		https://github.com/bcgit/bc-java/commit/c99d6427d6818d04165b07b45dfda96f2b384c53 https://github.com/bcgit/bc-java/wiki/CVE-2026-59647
Metrics		cvssV4_0 `{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Amber'}`

MITRE

Status: PUBLISHED

Assigner: bcorg

Published: 2026-08-03T00:46:57.977Z

Updated: 2026-08-03T13:34:57.488Z

Reserved: 2026-07-06T06:58:29.264Z

Link: CVE-2026-59647

Vulnrichment

Updated: 2026-08-03T13:34:53.403Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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