CVE-2026-89102: Improper Certificate Validation

In wolfSSL versions 5.7.2 through 5.9.2 there is a client-side implementation flaw in RFC 6961, multiple OCSP response stapling, which can lead to certificate forgery. When a wolfSSL client enables OCSP stapling with the HAVECERTIFICATESTATUSREQUESTV2 feature and calls wolfSSLUseOCSPStaplingV2ssl...

Fedora 43 : mongo-c-driver (2026-f74926c622)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f74926c622 advisory. libmongoc 1.30.9 Fixes - Fix OCSP error handling. CVE-2026-84964 - Fix unsafe casts during JSON parsing. CVE-2026-84965 - Fix possible unsafe...

CVE-2026-86248 Apache Tomcat: Fix for CVE-2026-34500 was incomplete. OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled

CLIENTCERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121. Users are recommended to upgrade to versi...

CLEANSTART-2026-QV01130 Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node

Security vulnerability affects the vault package. Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node...

PT-2026-105248

Security vulnerability affects the vault package. Improper OCSP response validation in the Snowflake Python, Go, JDBC, and Node...

Multiple Apache Tomcat vulnerabilities

Moderate: Apache Tomcat: Fix for CVE-2025-66614 is incomplete CVE-2026-32990 The validation of SNI name and host name did not take account of possible differences in case allowing the strict SNI checks to be bypassed. Important: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attac...

K000163345: GnuTLS vulnerability CVE-2026-3832

Security Advisory Description A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol OCSP response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a clien...

io.netty/netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack

A flaw was found in Netty. The OcspClient component fails to validate that the Certificate ID in an Online Certificate Status Protocol OCSP response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimate...

Linux Distros Unpatched Vulnerability : CVE-2026-93493

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Netty's netty-handler-ssl-ocsp component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protoco...

Linux Distros Unpatched Vulnerability : CVE-2026-93578

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP...

SUSE CVE-2026-93493

A flaw was found in Netty's netty-handler-ssl-ocsp component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol OCSP response that omits the optional nextUpdate field. This omission causes the OCSP validation to be silently skipped, leading to...

SUSE CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

[slackware-security] stunnel

New stunnel packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/stunnel-5.82-i586-1slack15.0.txz: Upgraded. This update fixes security issues: Fixed truncation and out-of-bounds reads when inheriti...

DEBIAN-CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

UBUNTU-CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

CVE-2026-93578 Io.netty/netty-handler-ssl-ocsp: netty: missing extended key usage (eku) check in ocsp client allows certificate revocation bypass

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

CVE-2026-93578

A flaw was found in Netty's Online Certificate Status Protocol OCSP Client. The client fails to verify the 'id-kp-OCSPSigning' Extended Key Usage EKU in OCSP responder certificates. A remote attacker, holding any valid certificate issued by the same Certificate Authority CA, can exploit this by...

CVE-2026-93578

CVE-2026-93578 affects the Netty library, specifically the netty-handler-ssl-ocsp module. The vulnerability stems from a missing Extended Key Usage (EKU) check in the OCSP client, which allows an attacker to perform a certificate revocation bypass . An OCSP response signed with a certificate lack...