CVE-2026-103884

A flaw was found in the X.509 client certificate authenticator of Keycloak. When CRL Distribution Point checking is enabled, the server fails to properly validate the file paths provided in a client certificate. An attacker can provide a specially crafted certificate that causes the server to...

CVE-2026-103884

A flaw was found in the X.509 client certificate authenticator of Keycloak. When CRL Distribution Point checking is enabled, the server fails to properly validate the file paths provided in a client certificate. An attacker can provide a specially crafted certificate that causes the server to...

EUVD-2026-90972

A flaw was found in the X.509 client certificate authenticator of Keycloak. When CRL Distribution Point checking is enabled, the server fails to properly validate the file paths provided in a client certificate. An attacker can provide a specially crafted certificate that causes the server to...

CVE-2026-103884

A flaw exists in the X.509 client certificate authenticator of Keycloak . When CRL Distribution Point checking is enabled, the server fails to properly validate file paths provided within a client certificate. This path traversal vulnerability allows an attacker to provide a specially crafted cer...

openssl: openssl: Denial of Service via excessive memory allocation in CRL distribution point processing

A flaw was found in OpenSSL. A remote attacker can cause a Denial of Service DoS by presenting a specially crafted certificate during a Transport Layer Security TLS handshake. When OpenSSL processes and caches certificate extensions containing numerous Certificate Revocation List CRL distribution...

openssl: openssl: Denial of Service via excessive memory allocation in CRL distribution point processing

A flaw was found in OpenSSL. A remote attacker can cause a Denial of Service DoS by presenting a specially crafted certificate during a Transport Layer Security TLS handshake. When OpenSSL processes and caches certificate extensions containing numerous Certificate Revocation List CRL distribution...

Lemur: Crafted CRL/OCSP URLs in uploaded certificates lead to post-authentication SSRF

Summary When verifying an uploaded certificate, lemur/certificates/verify.py extracts the CRL Distribution Point URL and the OCSP responder URL directly from the certificate's extensions and issues outbound requests to those URLs without scheme restriction or destination allow-listing. An...

PT-2026-59241

Summary When verifying an uploaded certificate, lemur/certificates/verify.py extracts the CRL Distribution Point URL and the OCSP responder URL directly from the certificate's extensions and issues outbound requests to those URLs without scheme restriction or destination allow-listing. An...

GHSA-54VG-PFH7-JQ95 Lemur: Crafted CRL/OCSP URLs in uploaded certificates lead to post-authentication SSRF

Summary When verifying an uploaded certificate, lemur/certificates/verify.py extracts the CRL Distribution Point URL and the OCSP responder URL directly from the certificate's extensions and issues outbound requests to those URLs without scheme restriction or destination allow-listing. An...

PT-2026-52653

Name of the Vulnerable Software and Affected Versions Lemur affected versions not specified Description An authenticated user with the operator role can induce the server to make unauthorized outbound requests to internal network resources. This occurs because the software extracts CRL Distributi...

GHSA-82J2-J2CH-GFR8 rustls-webpki: Denial of service via panic on malformed CRL BIT STRING

Summary bitstringflags in src/der.rs panics with an index-out-of-bounds when given a BIT STRING whose content is exactly 0x00 one byte: zero padding bits, zero data bytes. This is reachable through the public API BorrowedCertRevocationList::fromder via the issuingDistributionPoint CRL extension...

Reachable panic in certificate revocation list parsing

A panic was reachable when parsing certificate revocation lists via BorrowedCertRevocationList::fromder or OwnedCertRevocationList::fromder. This was the result of mishandling a syntactically valid empty BIT STRING appearing in the onlySomeReasons element of a IssuingDistributionPoint CRL...

PT-2026-34530

A panic was reachable when parsing certificate revocation lists via BorrowedCertRevocationList::from der or OwnedCertRevocationList::from der. This was the result of mishandling a syntactically valid empty BIT STRING appearing in the onlySomeReasons element of a IssuingDistributionPoint CRL...

CRL Distribution Point Scope Check Logic Error in AWS-LC

Summary AWS-LC is an open-source, general-purpose cryptographic library. Impact A logic error in CRL distribution point matching in AWS-LC allows a revoked certificate to bypass revocation checks during certificate validation, when the application enables CRL checking and uses partitioned CRLs wi...

GHSA-9F94-5G5W-GF6R CRL Distribution Point Scope Check Logic Error in AWS-LC

Summary AWS-LC is an open-source, general-purpose cryptographic library. Impact A logic error in CRL distribution point matching in AWS-LC allows a revoked certificate to bypass revocation checks during certificate validation, when the application enables CRL checking and uses partitioned CRLs wi...

RUSTSEC-2026-0049 CRLs not considered authoritative by Distribution Point due to faulty matching logic

If a certificate had more than one distributionPoint, then only the first distributionPoint would be considered against each CRL's IssuingDistributionPoint distributionPoint, and then the certificate's subsequent distributionPoints would be ignored. The impact was that correctly provided CRLs wou...

CRLs not considered authoritative by Distribution Point due to faulty matching logic

If a certificate had more than one distributionPoint, then only the first distributionPoint would be considered against each CRL's IssuingDistributionPoint distributionPoint, and then the certificate's subsequent distributionPoints would be ignored. The impact was that correctly provided CRLs wou...

CVE-2026-4428

A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks. To remediate this issue, users should upgrade to AWS-LC 1.71.0 or...

CVE-2026-4428 CRL Distribution Point Scope Check Logic Error in AWS-LC

A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks. To remediate this issue, users should upgrade to AWS-LC 1.71.0 or...

CVE-2026-4428 CRL Distribution Point Scope Check Logic Error in AWS-LC

A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks. To remediate this issue, users should upgrade to AWS-LC 1.71.0 or...