Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to the lack of exposure of the HMAC-SHA256 signing key in the SDK's typed API, which prevents verification of the X-AxonFlow-Signature header on incoming webhook deliveries. An attack...

GHSA-M958-864J-XQ5W Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx. This link is maintained to preserve external references. Original Description OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats...

EUVD-2026-25335

OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats Base64 and Base64URL encoded signatures as distinct requests. Attackers can re-encode Telnyx webhook signatures to bypass replay detection while maintaining valid signature...

Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx. This link is maintained to preserve external references. Original Description OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats...

CVE-2026-41351

OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats Base64 and Base64URL encoded signatures as distinct requests. Attackers can re-encode Telnyx webhook signatures to bypass replay detection while maintaining valid signature...

PT-2026-34782

OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats Base64 and Base64URL encoded signatures as distinct requests. Attackers can re-encode Telnyx webhook signatures to bypass replay detection while maintaining valid signature...

CVE-2026-35640

OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through...

Replay Attack

Overview openclaw is a 🦞 OpenClaw — Personal AI Assistant Affected versions of this package are vulnerable to Replay Attack via the webhook signature verification process. An attacker can bypass replay detection by submitting requests with equivalent Base64 and Base64URL-encoded signatures, causi...

Replay Attack

Overview @openclaw/voice-call is an OpenClaw voice-call plugin Affected versions of this package are vulnerable to Replay Attack via the webhook signature verification process. An attacker can bypass replay detection by submitting requests with equivalent Base64 and Base64URL-encoded signatures,...

BIT-DISCOURSE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-1461

The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured,...

EUVD-2022-6379

Malicious code in bioql PyPI...

CVE-2025-53548 @clerk/backend Performs Insufficient Verification of Data Authenticity

Clerk helps developers build user management. Applications that use the verifyWebhook helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issue was resolved in @clerk/backend 2.4.0...

Information Disclosure

jenkins-2-plugins is vulnerable to Information Disclosure. The vulnerability exists due to the non-constant time comparison function in the library when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook...

CVE-2022-36885

Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature...

CVE-2022-36885

Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature...