CVE-2026-58062

Critical

Description

In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

SeverityCritical

CVSS9.1

Exploit probability—

ProductBouncycastle Bouncy Castle For Java Lts

PublishedAug 3, 2026

First seenAug 3, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

bouncycastle bc-java1.85 or later
bouncycastle fips_java_api2.0.2, 2.1.3 or later

Patches

github.com/bcgit/bc-java/commit/add5f822660f3b2c29fd824e2f4095469c42a1c7

Vendor advisories

github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058062

Affected products

Product	Affected versions	Fixed in
bouncycastle bouncy_castle_for_java_lts	v ≤ 2.73.11	—
bouncycastle bc-java	1.66 ≤ v < 1.85	1.85
bouncycastle fips_java_api	v < 2.0.2, 2.1.0 ≤ v < 2.1.3	2.0.2, 2.1.3

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