EUVD-2026-53385

Issue summary: A malicious TLS server can cause a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains no single response entries. Impact summary: An attacker can leak an attacker-tunable amount of memory per TLS handshake in a victim clien...

CVE-2026-56822

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to se...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-42765

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: When a partial-chain certificate verification is enabled together with OCSP response checking for the whole chain, a NULL dereference will happen...

PT-2026-43713

Name of the Vulnerable Software and Affected Versions Erlang OTP versions 27.0 through 27.3.4.11 Erlang OTP versions prior to 28.5.0.1 Erlang OTP versions prior to 29.0.1 public key versions 1.16 through 1.17.1.2 public key versions prior to 1.20.3.1 public key versions prior to 1.21.1 Descriptio...

CVE-2026-34500 Apache Tomcat: 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 and FFM is used in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116. Users are recommended to upgrade to...

CVE-2026-29145

CVE-2026-29145 describes an authentication bypass in Apache Tomcat mutual TLS (CLIENT_CERT) when OCSP soft-fail is disabled. Affected are Tomcat 11.0.0-M1–11.0.18, 10.1.0-M7–10.1.52, and 9.0.83–9.0.115, plus Tomcat Native 1.1.23–1.1.34, 1.2.0–1.2.39, 1.3.0–1.3.6, and 2.0.0–2.0.13. With OCSP failu...

Fixed in Apache Tomcat 10.1.54

Moderate: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 CLIENTCERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used. This was fixed with commit 29b56a56. This issue was reported to the Tomcat security...

TheGreenBow VPN 安全漏洞

TheGreenBow VPN is a VPN client software from the French company TheGreenBow. A security vulnerability exists in TheGreenBow VPN versions 7.5 and 7.6 that stems from incorrect OCSP certificate validation and could lead to the creation of insecure VPN tunnels...

Mozilla: Revocation status of S/Mime signature certificates was not checked

The Mozilla Foundation Security Advisory describes this flaw as: Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by thi...

HAXX libcurl 信任管理问题漏洞

Haxx libcurl is an open source client-side URL transport library from the Swedish company Haxx. It supports protocols such as FTP, SFTP, TFTP and HTTP. Haxx libcurl suffers from a trust management issue vulnerability that can be exploited by an attacker to act as a man-in-the-middle by performing...

DEBIAN-CVE-2017-15698

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates th...

UBUNTU-CVE-2017-15698

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates th...