CVE-2026-58062CWE-295

CVE-2026-58062

Critical · published August 3, 2026

CVSS v3.1

9.1

EPSS

Percentile

29.1

In the wild

Unconfirmed

What it is

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).

The record

Technical detail

CVSS v3.1: 9.1 · CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0: Not supplied
EPSS: 0.00364 · 29.1th percentile
Weakness: CWE-295 · Improper Certificate Validation
Published: 2026-08-03T07:16Z

Affected products (4)

Product	Versions	Fixed in
bouncycastle/bc-java	≥ 1.66, < 1.85	1.85
bouncycastle/bouncy_castle_for_java_lts	≤ 2.73.11	—
bouncycastle/fips_java_api	< 2.0.2	2.0.2
bouncycastle/fips_java_api	≥ 2.1.0, < 2.1.3	2.1.3

References (2)

https://github.com/bcgit/bc-java/commit/add5f822660f3b2c29fd824e2f4095469c42a1c7 · 91579145-5d7b-4cc5-b925-a0262ff19630 https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058062 · 91579145-5d7b-4cc5-b925-a0262ff19630

EPSS history

Timeline

03 AUG 02:35Z
Stapled OCSP response accepted without binding to the checked certificate
cvelistv5