CWE-347
Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
651 vulnerabilities with CWE-347
CVE-2026-33467
MEDIUM
Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass
CVSS 5.9
CVE-2026-38651
HIGH
Netmaker <1.5.0 - Auth Bypass
CVSS 8.2
CVE-2026-6986
LOW
Cesanta Mongoose GCM Authentication Tag tls_aes128.c mg_aes_gcm_decrypt signature verification
CVSS 3.7
CVE-2026-6966
MEDIUM
Signature Threshold Bypass in awslabs/tough Delegated Roles
CVSS 5.3
CVE-2026-6911
CRITICAL
Authentication Bypass via Missing JWT Signature Verification in AWS Ops Wheel
CVSS 9.8
CVE-2026-34068
MEDIUM
nimiq-transaction: UpdateValidator transactions allows voting key change without proof-of-knowledge
CVSS 6.8
CVE-2026-40372
CRITICAL
ASP.NET Core Elevation of Privilege Vulnerability
CVSS 9.1
CVE-2026-41301
MEDIUM
OpenClaw 2026.3.22 < 2026.3.31 - Forged Nostr DM Pairing State Creation via Signature Verification Bypass
CVSS 5.3
CVE-2026-5050
HIGH
Payment Gateway for Redsys & WooCommerce Lite <= 7.0.0 - Improper Verification of Cryptographic Signature to Unauthenticated Payment Status Manipulation
CVSS 7.5
CVE-2026-6328
HIGH
XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets
CVE-2026-24032
HIGH
Siemens SINEC NMS <V4.0 SP3 - Auth Bypass
CVSS 7.3
CVE-2026-0234
HIGH
Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration
CVE-2026-5466
HIGH
wc_VerifyEccsiHash missing sanity check
CVSS 8.1
CVE-2026-40070
HIGH
bsv-sdk and bsv-wallet persist unverified certifier signatures in acquire_certificate (direct and issuance paths)
CVSS 8.1
CVE-2026-39413
MEDIUM
LightRAG has a JWT Algorithm Confusion Vulnerability in LightRAG API
CVSS 4.2
CVE-2026-2625
MEDIUM
Rust-rpm-sequoia: rust-rpm-sequoia: denial of service via crafted rpm file during signature verification
CVSS 4.0
CVE-2026-34840
HIGH
OneUptime SSO: Multi-Assertion Identity Injection via Decoupled Signature Verification
CVSS 8.1
CVE-2026-33746
CRITICAL
Convoy: JWT Signature Verification Bypass Allows Authentication as Arbitrary Users
CVSS 9.8
CVE-2026-34872
CRITICAL
Mbed TLS 3.5.x-3.6.5 - Improper Input Validation
CVSS 9.1
CVE-2026-34240
HIGH
jose vulnerable to untrusted JWK header key acceptance during signature verification
CVSS 7.5
CVE-2026-34377
HIGH
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
CVSS 8.1
CVE-2026-34155
MEDIUM
RAUC: Improper Signing of Plain Bundles Exceeding 2 GiB
CVSS 5.3
CVE-2026-32883
MEDIUM
Botan: Missing OCSP Response Signature Verification Allows MitM Certificate Revocation Bypass
CVSS 5.9
CVE-2026-31946
CRITICAL
OpenOLAT: Authentication bypass via forged JWT in OIDC implicit flow
CVSS 9.8
CVE-2026-33026
CRITICAL
nginx-ui Backup Restore Allows Tampering with Encrypted Backups
CVSS 9.1
Details
Vulnerabilities
651