openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing

A flaw was found in OpenSSL. A remote attacker could exploit this vulnerability by sending a specially crafted Cryptographic Message Syntax CMS EnvelopedData message. During the processing of a KeyTransportRecipientInfo with RSA-OAEP encryption, the system attempts to access an optional parameter...

RHSA-2026:44062 Red Hat Security Advisory: pki-deps:10.6 security update

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RLSA-2026:43400 Important: dogtag-pki security update

IdM PKI is an enterprise software system designed to manage enterprise Public Key Infrastructure deployments. IdM PKI consists of the following components: Certificate Authority CA Key Recovery Authority KRA Online Certificate Status Protocol OCSP Manager Token Key Service TKS Token Processing...

PT-2026-64003

When initializing an RSA public key from DER or PEM bytes throws an error, the EVP PKEY is double-freed: first in the catch block, then in the deinit. This can lead to a crash on future memory allocations. This double-free manifests when BoringSSL cannot decode the public key from the bytes...

pki-deps:10.6 security update

An update is available for module.slf4j, velocity, xml-commons-resolver, jackson-annotations, javassist, relaxngDatatype, module.glassfish-jaxb-api, slf4j, module.apache-commons-lang, module.jackson-jaxrs-providers, xsom, module.bea-stax, module.apache-commons-collections, jackson-modules-base,...

RHEL 8 : pki-deps:10.6 (RHSA-2026:43218)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:43218 advisory. The Public Key Infrastructure PKI Core contains fundamental packages required by Red Hat Certificate System. Security Fixes: jackson-databind:...

Important: pki-deps:10.6 security update

The Public Key Infrastructure PKI Core contains fundamental packages required by AlmaLinux Certificate System. Security Fixes: jackson-databind: Jackson-databind: Security bypass allows arbitrary code execution CVE-2026-54513 For more details about the security issues, including the impact, a CVS...

ALSA-2026:43218 Important: pki-deps:10.6 security update

The Public Key Infrastructure PKI Core contains fundamental packages required by AlmaLinux Certificate System. Security Fixes: jackson-databind: Jackson-databind: Security bypass allows arbitrary code execution CVE-2026-54513 For more details about the security issues, including the impact, a CVS...

Gitea SSH Key Parser Denial of Service

Gitea's SSH key ingestion endpoint accepts keys in RFC 4716 SSH2 format and normalises them before storage. The normalisation function contains an ON² string concatenation loop with no input size limit, meaning a single malicious key submission can force the server to perform an amount of work th...

libssh: libssh: information disclosure via short GSSAPI Curve25519 public key

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small...

Infinite loop

Overview Affected versions of this package are vulnerable to Infinite loop due to logic errors in automatic certificate-based public key authentication, which can cause clients to enter an infinite loop in the authentication process. An attacker can cause resource exhaustion by configuring a serv...

CVE-2026-59842 Libssh: libssh: information disclosure via short gssapi curve25519 public key

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the GSSAPIKeyExchange process when a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation. An attacker can access small portions of server memory by...

PT-2026-61948

Name of the Vulnerable Software and Affected Versions libssh versions prior to 0.11.5-1.1 Description Logic errors in automatic certificate-based public key authentication can cause clients to loop indefinitely when configured certificates are missing or are repeatedly rejected by a server,...

PT-2026-61857

Name of the Vulnerable Software and Affected Versions libssh affected versions not specified Description A flaw exists during server-side GSSAPI key exchange where a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation. This results in ...

PT-2026-63284

Name of the Vulnerable Software and Affected Versions Gitea affected versions not specified Description An authenticated user can cause a denial of service by submitting a specially crafted RFC 4716 SSH2 public key to the SSH key ingestion endpoint. The issue stems from a normalization function...

gnutls: gnutls: Memory corruption due to off-by-one error in PKCS#12 bag handling

A flaw was found in gnutls. An off-by-one error exists in the PKCS12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of...

Amazon Linux 2023 : amazon-ssm-agent (ALAS2023-2026-1952)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1952 advisory. An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected...

golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters

A flaw was found in golang.org/x/crypto/ssh. The RSA and DSA public key parsers in the affected component did not enforce size limits on key parameters. This vulnerability allows an unauthenticated client to provide a crafted public key with an excessively large modulus or DSA parameter during...

golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Authorization bypass due to skipped source-address validation

A flaw was found in golang.org/x/crypto/ssh. Source-address validation can be skipped when an SSH server configuration uses an authentication callback type other than public key, allowing authorization bypass in misconfigured servers. This is a follow-on to incomplete coverage from the...