CVE-2026-93602GHSA-PWJX-QHCG-RVJ4RUSTSEC-2026-0049
rustls-webpki before 0.103.10 CRL Revocation Check Bypass
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 0.103.10, 0.104.0-alpha.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- rustls webpki
From 0.102.0-alpha.0 · fixed in 0.103.10; From 0.104.0-alpha.1 · fixed in 0.104.0-alpha.5
- rustls-webpkicrates.io
From 0.102.0-alpha.0 · fixed in 0.103.10
- rustls-webpkicrates.io
From 0.104.0-alpha.1 · fixed in 0.104.0-alpha.5