Improper Check for Certificate Revocation Affecting rust-rustls-webpki package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-ECHOLATEST-RUSTRUSTLSWEBPKI-19946247
  • published19 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

NewCVE-2026-93602  (opens in a new tab)
CWE-299  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest rust-rustls-webpki.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-rustls-webpki package and not the rust-rustls-webpki package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1