Exploit for CVE-2026-73309

CVE-2026-73309 XenForo before 2.3.13 can skip OAuth2 client-s...

CVE-2026-73309

XenForo before 2.3.13 is vulnerable to an authentication bypass in its OAuth2 token endpoint . An unauthenticated attacker can submit empty strings for the client_secret and code_verifier parameters; because PHP truthy evaluation treats empty strings as falsy, both the client secret check and the...

EUVD-2026-72780

XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for clientsecret and codeverifier parameters. Attackers can exploit PHP truthy evaluation logic, which...

CVE-2026-73309 XenForo < 2.3.13 Authentication Bypass via OAuth2 Token Endpoint

XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for clientsecret and codeverifier parameters. Attackers can exploit PHP truthy evaluation logic, which...

PT-2026-87054

XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for client secret and code verifier parameters. Attackers can exploit PHP truthy evaluation logic, which...

GO-2026-6342 Gitea OAuth2 PKCE S256 verifier bypass in code.gitea.io/gitea

Gitea OAuth2 PKCE S256 verifier bypass in code.gitea.io/gitea...

Important: Red Hat Security Advisory: rest security update

An update for rest 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 Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

librest: weak random number generation in PKCE implementation

A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks sufficient cryptographic entropy, a malicious actor can reverse-engineer...

openSUSE 16 Security Update : librest (openSUSE-SU-2026:21694-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21694-1 advisory. This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseud...

RHEL 10 : rest (RHSA-2026:62222)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:62222 advisory. The rest packages provide a library for access to the RESTful web services. Security Fixes: librest: weak random number generation in PKCE...

Security update for librest (moderate)

openSUSE security update: security update for librest ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21694-1 Rating: moderate References: bsc1272399 Cross-References: CVE-2026-16615 CVSS scores: CVE-2026-16615 SUSE : 6.8...

SUSE-SU-2026:23564-1 Security update for librest

This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399...

OPENSUSE-SU-2026:21694-1 Security update for librest

This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399...

SUSE-SU-2026:3834-1 Security update for librest0_7

This update for librest07 fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399...

Security update for librest0_7

This update for librest07 fixes the following issue: CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST...

SUSE SLED15 / SLES15 Security Update : librest (SUSE-SU-2026:3795-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:3795-1 advisory. This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a...

SUSE SLES12 Security Update : librest (SUSE-SU-2026:3796-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:3796-1 advisory. This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically...

CVE-2026-63687

A flaw was found in Apache CXF. This vulnerability allows an attacker, who has compromised a client's secret, to bypass critical security protections in the authorization process. By injecting malicious values for parameters like codechallenge and nonce, the attacker can undermine the integrity o...

Security update for librest

This update for librest fixes the following issue: CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST...

SUSE-SU-2026:3796-1 Security update for librest

This update for librest fixes the following issue: - CVE-2026-16615: PKCE implementation for OAuth authorization uses a cryptographically insecure pseudo-random number generator bsc1272399...