CVE-2026-93602

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{"bugzilla": {"description": "rustls-webpki: rustls-webpki: Certificate Revocation Check Bypass via Faulty CRL Logic", "id": "2537991", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537991"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-295", "details": ["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.", "A flaw was found in rustls-webpki. The component contains faulty Certificate Revocation List (CRL) authority-matching logic, which incorrectly compares only the first distribution point against each CRL's issuing distribution point, ignoring others. This vulnerability allows an attacker with a compromised trusted issuing authority to present revoked certificates that bypass revocation checks, potentially leading to the acceptance of invalid certificates."], "name": "CVE-2026-93602", "package_state": [{"cpe": "cpe:/a:redhat:confidential_cluster_operator:4", "fix_state": "Fix deferred", "package_name": "confidential-clusters-beta/attestation-key-register-rhel9", "product_name": "Confidential Cluster Operator"}, {"cpe": "cpe:/a:redhat:confidential_cluster_operator:4", "fix_state": "Fix deferred", "package_name": "confidential-clusters-beta/compute-pcrs-rhel9", "product_name": "Confidential Cluster Operator"}, {"cpe": "cpe:/a:redhat:confidential_cluster_operator:4", "fix_state": "Fix deferred", "package_name": "confidential-clusters-beta/confidential-cluster-operator-bundle", "product_name": "Confidential Cluster Operator"}, {"cpe": "cpe:/a:redhat:confidential_cluster_operator:4", "fix_state": "Fix deferred", "package_name": 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"cpe:/a:redhat:trusted_profile_analyzer:2", "fix_state": "Fix deferred", "package_name": "rhtpa/rhtpa-trustification-service-rhel9", "product_name": "Red Hat Trusted Profile Analyzer"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:3", "fix_state": "Fix deferred", "package_name": "rhtpa/rhtpa-rhel10", "product_name": "Red Hat Trusted Profile Analyzer"}], "public_date": "2026-09-18T13:20:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93602\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93602\nhttps://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4\nhttps://www.vulncheck.com/advisories/rustls-webpki-before-0.103.10-crl-revocation-check-bypass"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.102.0-alpha.0,0.103.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.104.0-alpha.1,0.104.0-alpha.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "webpki", "source": "cna", "vendor": "rustls"}, "product": "webpki", "vendor": "rustls"}], "created": "2026-09-19T00:30:16.637055+00:00", "updated": "2026-09-23T01:45:19.226636+00:00", "vendors": ["rustls", "rustls$PRODUCT$webpki"]}