CVE-2026-93602

rustls-webpki versions before 0.103.10 and 0.104.0-alpha.5 contain faulty CRL authority-matching logic that compares only the first distributionPoint against each CRL's IssuingDistributionPoint, ignoring additional distributionPoints. Attackers with a compromised trusted issuing authority can present revoked certificates that pass revocation checks under UnknownStatusPolicy::Allow, or cause incorrect errors under the default deny policy.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4
https://www.vulncheck.com/advisories/rustls-webpki-before-0.103.10-crl-revocation-check-bypass

Configurations

No configuration.

History

18 Sep 2026, 14:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-18 14:19

Updated : 2026-09-22 20:25

NVD link : CVE-2026-93602

Mitre link : CVE-2026-93602

CVE.ORG link : CVE-2026-93602

JSON object : View

Products Affected

No product.

CWE

CWE-299

Improper Check for Certificate Revocation

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