CVE-2026-13506

In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/bcgit/bc-java/commit/77454da9b3dcaaa2991412d1c3c1a6e1a338ff84	Patch
https://github.com/bcgit/bc-java/wiki/CVE-2026-13506	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:bouncycastle:bc-java::::::::
	cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts::::::::
	cpe:2.3:a:bouncycastle:fips_java_api::::::::
	cpe:2.3:a:bouncycastle:fips_java_api::::::::
	cpe:2.3:a:bouncycastle:fips_java_api::::::::

History

No history.

Information

Published : 2026-08-03 04:16

Updated : 2026-08-28 16:41

NVD link : CVE-2026-13506

Mitre link : CVE-2026-13506

CVE.ORG link : CVE-2026-13506

JSON object : View

Products Affected

bouncycastle

bouncy_castle_for_java_lts
bc-java
fips_java_api

CWE

CWE-674

Uncontrolled Recursion

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This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series)."}], "lastModified": "2026-08-28T16:41:22.840", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6A5663-2E62-44AA-8A64-A3CB0DC8813B", "versionEndExcluding": "1.85"}, {"criteria": "cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F5ED4F42-08FF-4642-815D-1ED0C82FDBD2", "versionEndIncluding": "2.73.11"}, {"criteria": "cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BDB0974E-66FC-45AB-9F1B-0E80B86A4D06", "versionEndExcluding": "1.0.2.7", "versionStartIncluding": "1.0.0"}, {"criteria": "cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1C285AC-E2BF-4A23-BCD4-494CB5B2C42D", "versionEndExcluding": "2.0.2", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF53C833-06C3-4BDC-BEF6-50A8B8A0A47C", "versionEndExcluding": "2.1.3", "versionStartIncluding": "2.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "91579145-5d7b-4cc5-b925-a0262ff19630"}