PT-2026-41315

Name of the Vulnerable Software and Affected Versions LibJWT versions 3.0.0 through 3.3.2 Description LibJWT accepts an RSA JSON Web Key JWK lacking an alg parameter as the verification key for HS256, HS384, or HS512 tokens. When using the OpenSSL backend, this results in HMAC verification...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the OCSP stapling process with Apple SecTrust. An attacker can cause the client to accept invalid or revoked server certificates by exploiting the failure to properly detect OCSP response problems. Not...

Curl 8.17.0 < 8.20.0 OCSP Stapling Bypass

The version of curl installed on the remote host is 8.17.0 prior to 8.20.0. It is, therefore, affected by an OCSP stapling bypass vulnerability: - When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is...

curl: Function `do_pubkey()` can have out-of-bound read issue

Summary A 1-byte out-of-bounds heap read in dopubkey in lib/vtls/x509asn1.c. When parsing an RSA public key with a zero-length or all-zero modulus, the loop dereferences a pointer before checking bounds. Requires a non-OpenSSL TLS backend e.g., Mbed/Gnu. A certificate chain verification can trigg...

EulerOS 2.0 SP13 : glib-networking (EulerOS-SA-2026-1237)

According to the versions of the glib-networking package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : glib-networking's OpenSSL backend fails to properly check the return value of a call to BIOwrite, resulting in an out of bounds...

Unity Linux 20.1070e Security Update: glib-networking (UTSA-2026-005842)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005842 advisory. glib-networking's OpenSSL backend fails to properly check the return value of memory allocation routines. An out of memory condition could potentially result in...

CVE-2026-2574

A flaw was found in glib-networking. A malicious Transport Layer Security TLS server can exploit an out-of-bounds read and invalid free vulnerability when a client using the OpenSSL backend connects. By advertising a specially crafted client-CA list, the server can trigger an issue where memory i...

RHEL 9 : libssh (RHSA-2026:0431)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:0431 advisory. libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fixes: libssh: Invalid...

libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with th...

Moderate: Red Hat Security Advisory: libssh security update

An update for libssh is now available for Red Hat Enterprise Linux 9.6 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...

libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with th...

Moderate: Red Hat Security Advisory: libssh security update

An update for libssh 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...

Moderate: Red Hat Security Advisory: libssh security update

An update for libssh is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. 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...

Unity Linux 20.1070e Security Update: glib-networking (UTSA-2025-993332)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993332 advisory. glib-networking's OpenSSL backend fails to properly check the return value of a call to BIOwrite, resulting in an out of bounds read. Tenable has extracted the...

AlmaLinux 10 : libssh (ALSA-2025:23484)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2025:23484 advisory. libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend CVE-2025-5987 Tenable has extracted the preceding description block directly from the...

libssh security update

An update is available for libssh. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list libssh is a library which implements the SSH protocol. It can be used to...

RLSA-2025:23483 Moderate: libssh security update

libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fixes: libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend CVE-2025-5987 For more details about the security issues, including the impact, a CVSS score,...

RLSA-2025:23484 Moderate: libssh security update

libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fixes: libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend CVE-2025-5987 For more details about the security issues, including the impact, a CVSS score,...

libssh security update

An update is available for libssh. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list libssh is a library which implements the SSH protocol. It can be used to...

libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with th...