CVE-2026-58063

In Bouncy Castle for Java before 1.85, BCFKS keystore load honours unbounded KDF cost from untrusted file. 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 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/bcgit/bc-java/commit/81737a56ef4489da1f849cf549df95e338ea6b06	Patch
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058063	Third Party Advisory Patch

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 03:16

Updated : 2026-09-02 14:34

NVD link : CVE-2026-58063

Mitre link : CVE-2026-58063

CVE.ORG link : CVE-2026-58063

JSON object : View

Products Affected

bouncycastle

bouncy_castle_for_java_lts
bc-java
fips_java_api

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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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": "2026-09-02T14:34:30.587", "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"}