CVE-2026-58062

A flaw was found in Bouncy Castle for Java. A remote attacker could exploit this by presenting a stapled Online Certificate Status Protocol OCSP response that is not properly bound to the certificate being checked. This vulnerability allows for a certificate validation bypass, potentially leading...

openssl: OpenSSL: Memory leak leads to Denial of Service in OCSP response checking

A flaw was found in OpenSSL. A malicious TLS Transport Layer Security server can exploit this vulnerability by sending a specially crafted OCSP Online Certificate Status Protocol response during the X.509 certificate chain verification process. This can lead to a memory leak in client application...

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...

Security update for bouncycastle

This update for bouncycastle fixes the following issues: CVE-2026-8763: Name Constraints bypass via trailing dot in rfc822Name and URI bsc1272700. CVE-2026-12185: BKS/UBER keystore allocates from untrusted lengths before integrity check bsc1272701. CVE-2026-12802: CMS AuthEnvelopedData fails to...

Moderate: Red Hat Security Advisory: mod_md security update

An update for modmd is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 10 : mod_md (RHSA-2026:52393)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:52393 advisory. This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate...

EulerOS 2.0 SP15 : httpd (EulerOS-SA-2026-2888)

According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A NULL pointer dereference in moddavlock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime through the checkcertocspresp function in crypto/x509/x509vfy.c. An attacker can exhaust memory in a TLS client by supplying a stapled OCSP BasicResponse with no single-response entries...

CVE-2026-54876

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-2026-54876 Client-Side Memory Leak in OCSP Response Checking

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-2026-54876

CVE-2026-54876 describes a memory leak in TLS clients that enable OCSP response checking when interacting with a malicious TLS server. Specifically, if the server returns an OCSP response containing an empty BasicOCSPResponse (empty SEQUENCE OF SingleResponse), the OCSP_basicRESP structure alloca...

CVE-2026-54876 Client-Side Memory Leak in OCSP Response Checking

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-2026-54876

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...

OpenSSL 4.0.0 < 4.0.2 Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 4.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the 4.0.2 advisory. - Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the...

Linux Distros Unpatched Vulnerability : CVE-2026-54876

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 ...

Important: aws-nitro-enclaves-cli

Issue Overview: rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL doe...

Amazon Linux 2023 : aws-nitro-enclaves-cli, aws-nitro-enclaves-cli-devel, aws-nitro-enclaves-cli-integration-tests (ALAS2023-2026-2034)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2034 advisory. rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as...

Important: aws-nitro-enclaves-cli

Issue Overview: rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL doe...

MiracleLinux 9 : mod_md-2.4.26-2.el9_8.1 (AXSA:2026-1444:01)

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2026-1444:01 advisory. httpd: modmd: unrestricted OCSP response leads to resource exhaustion CVE-2026-29168 Tenable has extracted the preceding description block directly from the...

K000162735: Apache HTTP Server vulnerability CVE-2026-44185

Security Advisory Description Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue...