CVE-2026-12185 - Vulnerability Details - OpenCVE

In Bouncy Castle for Java before 1.85, BKS/UBER keystore allocates from untrusted lengths before integrity check. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

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 no

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://github.com/bcgit/bc-java/commit/7bbd7fe5f44132e5b6140a2914435c12430eeb3d
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9012185

History

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

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 03 Aug 2026 09:00:00 +0000

Type	Values Removed	Values Added
References	https://github.com/bcgit/bc-java/wiki/CVE-2026-12185	https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9012185

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

Type	Values Removed	Values Added
Description		In Bouncy Castle for Java before 1.85, BKS/UBER keystore allocates from untrusted lengths before integrity check. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
Title		BKS/UBER keystore allocates from untrusted lengths before integrity check
Weaknesses		CWE-789
References		https://github.com/bcgit/bc-java/commit/7bbd7fe5f44132e5b6140a2914435c12430eeb3d https://github.com/bcgit/bc-java/wiki/CVE-2026-12185
Metrics		cvssV4_0 `{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Amber'}`

MITRE

Status: PUBLISHED

Assigner: bcorg

Published: 2026-08-03T00:38:01.609Z

Updated: 2026-08-03T13:30:08.548Z

Reserved: 2026-06-14T00:39:34.400Z

Link: CVE-2026-12185

Vulnrichment

Updated: 2026-08-03T13:30:03.526Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-03T09:15:03Z

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