fast-jwt: Stateful RegExp (/g or /y) causes non-deterministic allowed-claim validation (logical DoS)

Impact Using certain modifiers on RegExp objects in the allowedAud, allowedIss, allowedSub, allowedJti, or allowedNonce options in verify functions can cause certain unintended behaviours. This is because some modifiers are stateful and will cause failures in every second verification attempt...

CVE-2026-35040 fast-jwt: Stateful RegExp (/g or /y) causes non-deterministic allowed-claim validation (logical DoS)

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.2.1, using certain modifiers on RegExp objects in the allowedAud, allowedIss, allowedSub, allowedJti, or allowedNonce options in verify functions can cause certain unintended behaviours. This is because some modifiers are statef...

CVE-2026-35040

CVE-2026-35040 affects the fast-jwt library prior to version 6.2.1. The issue involves stateful RegExp modifiers /g and /y used in allowedAud, allowedIss, allowedSub, allowedJti, or allowedNonce verify options, which can cause 50% of valid authentication attempts to fail in an alternating pattern...

PT-2026-31793

Name of the Vulnerable Software and Affected Versions WolfSSL affected versions not specified Description WolfSSL improperly handles URI name constraints from constrained intermediate Certificate Authorities CAs during certificate chain verification. The parsing of these constraints occurs, but...

PT-2026-31663

Laravel Passport provides OAuth2 server support to Laravel. From 13.0.0 to before 13.7.1, there is an Authentication Bypass for client credentials tokens. the league/oauth2-server library sets the JWT sub claim to the client identifier since there's no user. The token guard then passes this value...

Linux Distros Unpatched Vulnerability : CVE-2026-33810

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different...

SUSE CVE-2026-31789

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

golang: crypto/x509: excluded subdomain constraint does not restrict wildcard SANs

A flaw was found in the crypto/x509 package in the Go standard library. This vulnerability allows a certificate validation bypass via an excluded subdomain constraint in a certificated chain as it does not restrict the usage of wildcard SANs in the leaf certificate...

CVE-2026-34580

A flaw was found in Botan, a C++ cryptography library. Due to a misleading function name and an assumption in path validation logic, an end entity certificate could be incorrectly accepted as a trusted root. This occurs when the end entity certificate's Distinguished Name DN and Subject Key...

UBUNTU-CVE-2026-33810

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the...

CVE-2026-33810 Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the...

CVE-2026-33810

CVE-2026-33810 affects the Go crypto/x509 certificate chain validation. The issue occurs when verifying a chain with excluded DNS constraints: constraints are not consistently applied to wildcard DNS SANs if the SANs’ case differs from the constraint, which can affect validation of otherwise trus...

EUVD-2026-19968

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

DEBIAN-CVE-2026-31789

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

ALPINE-CVE-2026-31789

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper validation in the certificateknown function. An attacker can bypass certificate trust verification by presenting an end entity certificate with a distinguished name and subject key...

CVE-2026-31789

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

CVE-2026-31789

OpenSSL vulnerability CVE-2026-31789: on 32-bit platforms, converting a large OCTET STRING (e.g., SKID/AKID in X.509 certificates) to hex can overflow the buffer, causing a heap overflow that may crash or enable attacker-controlled behavior. Affected are OpenSSL versions with the vulnerable conve...

CVE-2026-31789 Heap Buffer Overflow in Hexadecimal Conversion

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

CVE-2026-31789 Heap Buffer Overflow in Hexadecimal Conversion

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...