Insufficient Session Expiration

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Insufficient Session Expiration in the realtime authentication process. An attacker can maintain unauthorized access to realtime features by using a JWT that has been revoked via sign-out or back-channel...

Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Summary With Redis configured, Open WebUI supports JWT revocation: POST /api/v1/auths/signout per-token jti and OIDC back-channel logout per-user revokedat record revocations in Redis, and HTTP auth getcurrentuser rejects revoked tokens with 401. The realtime authentication surfaces do not perfor...

GHSA-855V-HQ7W-JMJW Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Summary With Redis configured, Open WebUI supports JWT revocation: POST /api/v1/auths/signout per-token jti and OIDC back-channel logout per-user revokedat record revocations in Redis, and HTTP auth getcurrentuser rejects revoked tokens with 401. The realtime authentication surfaces do not perfor...

Missing Authorization

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Missing Authorization through the TokenManager component in the identity management service. An attacker can...

etcd: etcd: Authentication bypass due to improper Certificate Revocation List enforcement on gRPC listener

A flaw was found in etcd, a distributed key-value store. When etcd is configured to use separate listeners for HTTP and gRPC client endpoints, the Certificate Revocation List CRL is not properly enforced on the gRPC listener. This oversight allows a client with a revoked certificate to successful...

Oracle Linux 10 : tomcat9 (ELSA-2026-25341)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-25341 advisory. - Resolves: RHEL-150720 Tomcat: Certificate revocation bypass due to improper OCSP response validation CVE-2026-24734 - Resolves: Tomcat: OCSP checks sometime...

tomcat9 update

1:9.0.117-2 - Resolves: RHEL-185571 Remove tomcat clustering JAR from RPM builds 1:9.0.117-1 - Resolves: RHEL-150720 Tomcat: Certificate revocation bypass due to improper OCSP response validation CVE-2026-24734 - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is...

Netty: TOCTOU in OcspServerCertificateValidator

Summary Netty's OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to send sensitive application data e.g., HTTP requests to a revoked server before the channel is closed by the OC...

GHSA-WC96-39FC-566F Netty: TOCTOU in OcspServerCertificateValidator

Summary Netty's OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to send sensitive application data e.g., HTTP requests to a revoked server before the channel is closed by the OC...

GHSA-G7HG-VRCF-MVMR Netty: Out-of-date OCSP Responses Accepted by OcspServerCertificateValidator

Summary OcspServerCertificateValidator flags an out-of-date OCSP response but does not stop processing it, so an expired GOOD response is still reported as VALID, letting an on-path attacker replay a stale GOOD response to bypass revocation of a since-revoked certificate. Details In...

Improper Check for Certificate Revocation

Overview io.netty:netty-handler-ssl-ocsp is a Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. Affected versions of this package are vulnerable to Improper Check for Certificate Revocation in t...

EUVD-2026-47582

Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks...

GO-2026-6041 Gitea: Notification API leaks private issue metadata after access revocation in code.gitea.io/gitea

Gitea: Notification API leaks private issue metadata after access revocation in code.gitea.io/gitea...

GO-2026-6033 Gitea: Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content in gitea.dev

Gitea: Webhooks created by a collaborator keep firing after their repo access is revoked → ongoing real-time exfiltration of private repo content in gitea.dev...

Improper Certificate Validation

Overview io.netty:netty-handler-ssl-ocsp is a Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. Affected versions of this package are vulnerable to Improper Certificate Validation in the...

DEBIAN-CVE-2026-56820

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay...

CVE-2026-56820

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay...

CVE-2026-56820

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay...

CVE-2026-56820 Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay...

CVE-2026-56820

Netty’s OcspClient vulnerability (CVE-2026-56820) allows a replay attack by not validating the CertificateID in OCSP responses. A forged or unrelated-but-signed OCSP response can be accepted for another certificate issued by the same CA, bypassing revocation checks. Affected versions: 4.2.0.Final...