Weakness (CWE)
CWE-347: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Source: MITRE CWE-347
372 results · Clear filters · Feed
-
High 7.5CVE-2026-44714 Public exploit
bitcoinj: ScriptExecution P2PKH/P2WPKH Verification Bypass
The bitcoinj library is a Java implementation of the Bitcoin protocol. Prior to 0.17.1, ScriptExecution.correctlySpends() contains two fast-path verification bugs for standard P2PKH and native P2WPKH spends in core/src/main/java/org/bitcoinj/script/ScriptExec…
-
High 7.0
Improper verification of cryptographic signature in the Radeon RGB tool could allow a malicious file placed in the inst…
-
High 8.1
azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay
azureauthextension is the Azure Authenticator Extension. From 0.124.0 to 0.150.0, a server-side authentication bypass in azureauthextension allows any party who holds a single valid Azure access token for any scope the collector's configured identity can mint…
-
High 8.0
Zen Browser MAR updater ships with signature verification removed — unsigned updates accepted
Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource (MAR) updater (org.mozilla.updater) that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to u…
-
High 7.5
Malicious module proxy can bypass checksum database in cmd/go
A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy (GOMODPROXY) or checksum database (GOSUMDB). A malicious…
-
High 8.2
Admidio: SAML Signature Validation Result Ignored — Forged AuthnRequests and LogoutRequests Processed
Admidio is an open-source user management solution. Prior to version 5.0.9, the Admidio SAML Identity Provider implementation discards the return value of its validateSignature() method at both call sites (handleSSORequest() line 418 and handleSLORequest() li…
-
High 8.2
Netmaker does not verify JWT signatures for host tokens
Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it …
-
High 7.5CVE-2026-5050 Public exploit
Payment Gateway for Redsys & WooCommerce Lite <= 7.0.0 - Improper Verification of Cryptographic Signature to Unauthenticated Payment Status Manipulation
The Payment Gateway for Redsys & WooCommerce Lite plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 7.0.0 due to successful_request() handlers calculating a local signature but not validat…
-
High 8.3
XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets
Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux (QUIC protocol implementation, packet processing module, STREAM frame handler modules) allows Protocol Manipulation.This issue affe…
-
High 7.3
A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3 with UMC). The affected application contains …
-
High 7.2
Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration
An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access and modify protected resources.
-
High 7.6
wc_VerifyEccsiHash missing sanity check
wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity,…
-
High 8.1
bsv-sdk and bsv-wallet persist unverified certifier signatures in acquire_certificate (direct and issuance paths)
BSV Ruby SDK is the Ruby SDK for the BSV blockchain. From 0.3.1 to before 0.8.2, BSV::Wallet::WalletClient#acquire_certificate persists certificate records to storage without verifying the certifier's signature over the certificate contents. In acquisition_pr…
-
High 8.4
Helm's plugin verification fails open when .prov is missing, allowing unsigned plugin install
Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4.
-
High 7.6
OCSP designated-responder authorization bypass via missing signature verification
Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not veri…
-
High 8.1
OneUptime SSO: Multi-Assertion Identity Injection via Decoupled Signature Verification
OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, OneUptime's SAML SSO implementation (App/FeatureSet/Identity/Utils/SSO.ts) has decoupled signature verification and identity extraction. isSignatureValid() verifies t…
-
High 7.5
jose vulnerable to untrusted JWK header key acceptance during signature verification
JOSE is a Javascript Object Signing and Encryption (JOSE) library. Prior to version 0.3.5+1, a vulnerability in jose could allow an unauthenticated, remote attacker to forge valid JWS/JWT tokens by using a key embedded in the JOSE header (jwk). The vulnerabil…
-
High 8.4
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction…
-
High 7.2
RAUC: Improper Signing of Plain Bundles Exceeding 2 GiB
RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the pa…
-
High 8.6
OpenClaw < 2026.3.12 - Forged Event Injection via Feishu Webhook Verification Token
OpenClaw before 2026.3.12 contains an authentication bypass vulnerability in Feishu webhook mode when only verificationToken is configured without encryptKey, allowing acceptance of forged events. Unauthenticated network attackers can inject forged Feishu eve…
-
High 7.5
Forge has signature forgery in Ed25519 due to missing S > L check
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order (`S …
-
High 7.5
Forge has signature forgery in RSA-PKCS due to ASN.1 extra field
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatur…
-
High —
libcrux has an Incorrect Check of Signer Response Norm During Verification
The ML-DSA verification algorithm as specified in [FIPS 204, subsection 6.3](https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.204.pdf#subsection.6.3) requires verifiers to check that the infinity norm of the deserialized signer response $z$ does not exceed $\…
-
High 7.5
goxmldsig has validateSignature Loop Variable Capture Signature Bypass
goxmlsig provides XML Digital Signatures implemented in Go. Prior to version 1.6.0, the `validateSignature` function in `validate.go` goes through the references in the `SignedInfo` block to find one that matches the signed element's ID. In Go versions before…
-
High 7.4
jsrsasign: DSA signatures or X.509 certificates can be forged via DSA domain-parameter validation in KJUR.crypto.DSA.setPublic
Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker…
-
High 8.1
Yi Technology YI Home Camera HTTP Firmware Update ipc signature verification
A vulnerability was identified in Yi Technology YI Home Camera 2 2.1.1_20171024151200. This impacts an unknown function of the file home/web/ipc of the component HTTP Firmware Update Handler. The manipulation leads to improper verification of cryptographic si…
-
High 7.5
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…
-
High 7.5
sjcl is missing point-on-curve validation in sjcl.ecc.basicKey.publicKey
Versions of the package sjcl before 1.0.9 are vulnerable to Improper Verification of Cryptographic Signature due to missing point-on-curve validation in sjcl.ecc.basicKey.publicKey(). An attacker can recover a victim's ECDH private key by sending crafted off-…
-
High 7.5
Go ShangMi SM9 Infinity-Point Ciphertext Forgery Vulnerability
Go ShangMi (Commercial Cryptography) Library (GMSM) is a cryptographic library that covers the Chinese commercial cryptographic public algorithms SM2/SM3/SM4/SM9/ZUC. Prior to 0.41.1, the current SM9 decryption implementation contains an infinity-point cipher…
-
High 7.5
PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)
PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the librar…
-
High 7.1
HTTP signature verification can be bypassed
Misskey is an open source, federated social media platform. All Misskey servers prior to 2026.3.1 contain a vulnerability that allows bypassing HTTP signature verification. Although this is a vulnerability related to federation, it affects all servers regardl…
-
High 7.2
Signature bypass on update upload
A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR.
-
High 7.7
Authlib: Setting `alg: none` and a blank signature appears to bypass signature verification
Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step wit…
-
High 7.5
PKCS7_verify Signature Validation Bypass in AWS-LC
Improper signature validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes. Customers of AWS services do not need to take action. Applications using AWS…
-
High 8.8
authentik has a Signature Verification Bypass via SAML Assertion Wrapping
authentik is an open-source identity provider. Prior to 2025.8.6, 2025.10.4, and 2025.12.4, when using a SAML Source that has the option Verify Assertion Signature under Verification Certificate enabled and not Verify Response Signature, or does not have the …
-
High 8.8
XML Signature Wrapping in SAP NetWeaver AS ABAP and ABAP Platform
SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity informa…
-
High 8.1CVE-2026-1529 Public exploit
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attack…
-
High 7.6
Nebula Has Possible Blocklist Bypass via ECDSA Signature Malleability
Nebula is a scalable overlay networking tool. In versions from 1.7.0 to 1.10.2, when using P256 certificates (which is not the default configuration), it is possible to evade a blocklist entry created against the fingerprint of a certificate by using ECDSA Si…
-
High 8.7
Payment bypass in Commerce Paybox
Improper Verification of Cryptographic Signature vulnerability in Drupal Drupal Commerce Paybox Commerce Paybox on Drupal 7.X allows Authentication Bypass.This issue affects Drupal Commerce Paybox: from 7-x-1.0 through 7.X-1.5.
-
High 7.5
sm-crypto Affected by Signature Forgery in SM2-DSA
sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature forgery vulnerability exists in the SM2 signature verification logic of sm-crypto prior to version 0.4.0. Under default configurations, an att…