BIT-MINIO-2026-40344 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

MinIO is a high-performance object storage system. Starting in 2023.05.18 and prior to 2026.04.11, an authentication bypass vulnerability in MinIO's Snowball auto-extract handler PutObjectExtractHandler allows any user who knows a valid access key to write arbitrary objects to any bucket without...

CVE-2026-40344 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

MinIO is a high-performance object storage system. Starting in RELEASE.2023-05-18T00-05-36Z and prior to RELEASE.2026-04-11T03-20-12Z, an authentication bypass vulnerability in MinIO's Snowball auto-extract handler PutObjectExtractHandler allows any user who knows a valid access key to write...

GHSA-9C4Q-HQ6P-C237 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

Impact Two authentication bypass vulnerabilities in MinIO's STREAMING-UNSIGNED-PAYLOAD-TRAILER code path allow any user who knows a valid access key to write arbitrary objects to any bucket without knowing the secret key or providing a valid cryptographic signature. Any MinIO deployment is...

EUVD-2026-20117

The Masteriyo LMS – Online Course Builder for eLearning, LMS & Education plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in versions up to and including 2.1.7. This is due to insufficient webhook signature verification in the handlewebhook function. The...

CVE-2026-32144 OCSP designated-responder authorization bypass via missing signature verification

Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in publickey:pkixocspvalidate/5 does not verify that a CA-designated responder certificate...

CVE-2026-31946

OpenOLAT OpenID Connect implicit flow (versions 10.5.4–before 20.2.5) does not verify JWT signatures. The JSONWebToken.parse() method discards the signature segment, and getAccessToken() validates only issuer/audience/state/nonce, without cryptographic verification against the IdP’s JWKS. This ca...

Unsigned SAML LogoutRequest Acceptance in gosaml2

Summary The ValidateEncodedLogoutRequestPOST function in gosaml2 accepts completely unsigned SAML LogoutRequest messages even when SkipSignatureValidation is set to false. When validateElementSignature returns dsig.ErrMissingSignature, the code in decodelogoutrequest.go:60-62 silently falls throu...

CVE-2026-2746 Missing PGP Signature Tag

SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails...

GHSA-MQPR-49JJ-32RC n8n: Webhook Forgery on Github Webhook Trigger

Impact An attacker who knows the webhook URL of a workflow using the GitHub Webhook Trigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node did not implement the HMAC-SHA256 signature verification that GitHub provides to authenticate webhook deliverie...

EUVD-2025-10690

Malicious code in bioql PyPI...

EUVD-2022-2335

Malicious code in bioql PyPI...

CVE-2025-59934

Formbricks (pre-4.0.1) is affected by missing JWT signature verification. A token validation path uses jwt.decode without signature checks, allowing an attacker who knows a user’s user.id to craft a JWT with alg: none and authenticate or reset the victim’s password. The same validator is used for...

Linux Distros Unpatched Vulnerability : CVE-2017-16852

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - shibsp/metadata/DynamicMetadataProvider.cpp in the Dynamic MetadataProvider plugin in Shibboleth Service Provider before 2.6.1 fails to properly configure itsel...

CVE-2024-42459

A flaw was found in the NodeJS Elliptic package. When creating EDDSA signatures, the Elliptic package doesn't properly check the signature length, allowing zeros to be added or removed from the signature without invalidating it, which may result in confidentiality issues. Mitigation Mitigation fo...

CVE-2024-42459

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended...

CVE-2024-42459

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended...

CVE-2024-42459

CVE-2024-42459 concerns the Elliptic package (Node.js) version 6.5.6. The issue is EDDSA signature malleability caused by a missing signature length check, enabling zero-valued bytes to be removed or appended. The CVE notes a base score of 5.3 (Medium) with network attack vector but no customer-p...

Insecure Unserialize Vulnerability in FLOW3

Due to a missing signature HMAC for a request argument, an attacker could unserialize arbitrary objects within FLOW3. To our knowledge it is neither possible to inject code through this vulnerability, nor are there exploitable objects within the FLOW3 Base Distribution. However, there might be...

Insecure deserialize Vulnerability in FLOW3

Due to a missing signature HMAC for a request argument, an attacker could unserialize arbitrary objects within FLOW3. To our knowledge it is neither possible to inject code through this vulnerability, nor are there exploitable objects within the FLOW3 Base Distribution. However, there might be...

GHSA-7H74-7VCW-4MWP Insecure deserialize Vulnerability in FLOW3

Due to a missing signature HMAC for a request argument, an attacker could unserialize arbitrary objects within FLOW3. To our knowledge it is neither possible to inject code through this vulnerability, nor are there exploitable objects within the FLOW3 Base Distribution. However, there might be...