CVE-2025-22874
crypto/x509: Usage of ExtKeyUsageAny disables policy validation in crypto/x509
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 12, 2025
Updated · October 29, 2026
Description
A flaw was found in Go's crypto/x509 package. This vulnerability allows improper certificate validation, bypassing policy constraints via using ExtKeyUsageAny in VerifyOptions.KeyUsages.
Statement
This flaw is rated as an Important severity because the vulnerability was found in the certificate validation logic of the Verify function. When VerifyOptions.KeyUsages includes ExtKeyUsageAny, certificate chains containing policy graphs may bypass certificate policy validation. This flaw allows an attacker to trick the system into accepting an invalid certificate, potentially enabling spoofing attacks, the issue weakens trust decisions in affected cases and impacts system integrity. Confidentiality and availability are not affected.
Red Hat Openshift Container Platform openshift-golang-builder-container ships golang 1.23 and does not ship the affected code.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-295 · Improper Certificate Validation