CWE-347— Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.— MITRE CWE catalog
917 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-347page 6 of 19
- CVE-2026-75946HIGHCVSS 8.2EG 8.22026-08-21
A potential security vulnerability has been identified in the OMEN Gaming Hub for versions prior to 1101.2608.0.0. The vulnerability could potentially allow a local attacker to escalate privileges due to insufficient access controls.
- CVE-2026-53501HIGHCVSS 8.2EG 8.22026-07-31
Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor’s HMAC validation can be bypassed due to the use of Python’s .replace() when removing the signature from the URL before validation. Since .replace(…
- CVE-2026-54736HIGHCVSS 8.2EG 8.22026-07-10
Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\Encryption\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a b…
- CVE-2026-52767HIGHCVSS 8.2EG 8.22026-07-09
YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature() checks the result of PHP's openssl_verify() with a loose boolean negation - if (!openssl_verify(...)) { throw ... …
- CVE-2026-49998HIGHCVSS 8.2EG 8.22026-07-01
Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.1, Centrifugo dynamic JWKS endpoint verification could reuse a key for one allowed issuer to verify a JWT for another allowed issuer because the JWKS cache and …
- CVE-2026-41669HIGHCVSS 8.2EG 8.22026-05-07
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 h…
- CVE-2026-38651HIGHCVSS 8.2EG 8.22026-04-28
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 arbit…
- CVE-2024-7344HIGHCVSS 8.2EG 8.22025-01-14
Howyar UEFI Application "Reloader" (32-bit and 64-bit) is vulnerable to execution of unsigned software in a hardcoded path.
- CVE-2024-51526HIGHCVSS 8.2EG 8.22024-11-05
Permission control vulnerability in the hidebug module Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2023-28804HIGHCVSS 8.2EG 8.22023-10-23
An Improper Verification of Cryptographic Signature vulnerability in Zscaler Client Connector on Linux allows replacing binaries.This issue affects Linux Client Connector: before 1.4.0.105
- CVE-2022-25333HIGHCVSS 8.2EG 8.22023-10-19
The Texas Instruments OMAP L138 (secure variants) trusted execution environment (TEE) performs an RSA check implemented in mask ROM when loading a module through the SK_LOAD routine. However, only the module header authenticity is validate…
- CVE-2021-31847HIGHCVSS 8.2EG 8.22021-09-22
Improper access control vulnerability in the repair process for McAfee Agent for Windows prior to 5.7.4 could allow a local attacker to perform a DLL preloading attack using unsigned DLLs. This would result in elevation of privileges and t…
- CVE-2021-31841HIGHCVSS 8.2EG 8.22021-09-22
A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gai…
- CVE-2018-16557HIGHCVSS 8.2EG 8.22018-12-13
A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC…
- CVE-2026-14497HIGHCVSS 8.1EG 8.12026-10-08
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote authenticated attacker to bypass security restrictions due to improper verification of …
- CVE-2026-87004HIGHCVSS 8.1EG 8.12026-09-30
Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.31.3, when the OIDC login flow completes, backend/modules/auth/providers/auth_oidc_provider.py decodes the id_token returned by the identity pro…
- CVE-2026-67276HIGHCVSS 8.1EG 8.12026-09-05
RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-suppli…
- CVE-2026-82461HIGHCVSS 8.1EG 8.12026-08-29
pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypa…
- CVE-2026-54330HIGHCVSS 8.1EG 8.12026-08-27
Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Ceph Object Gateway (RGW) SigV4 handler does not reject requests that carry x-amz-* headers absent f…
- CVE-2026-68745HIGHCVSS 8.1EG 8.12026-08-21
Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.1.0 on all platforms allow a malicious agent to forge a SAML response to the management server. The agent will have to spoof the ip address of th…
- CVE-2025-9210HIGHCVSS 8.1EG 8.12026-08-18
Missing signature validation in JSON Web Tokens in Otalio Ship Property Management System versions before 2.22.0 allows authenticated attackers to escalate privileges via tampering with JWTs
- CVE-2026-18500HIGHCVSS 8.1EG 8.12026-08-15
@fastify/jwt is a JSON Web Token plugin for Fastify. In versions before 10.2.2, a per-request verification key passed to request.jwtVerify({ key }) is silently overridden by the plugin's globally configured secret, because the option merge…
- CVE-2026-15556HIGHCVSS 8.1EG 8.12026-08-11
A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protec…
- CVE-2026-18092HIGHCVSS 8.1EG 8.12026-08-03
Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because new_from_xml reads assertion identity with document-wide XPath instead of the signed subtree. new_from_xml reads the NameID, attr…
- CVE-2026-11348HIGHCVSS 8.1EG 8.12026-07-07
Improper verification of cryptographic signature vulnerability in HAVELSAN Inc. Liman MYS allows Fake the Source of Data. This issue affects Liman MYS: before release.Master.1107.
- CVE-2026-11800HIGHCVSS 8.1EG 8.12026-06-25
A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can creat…
- CVE-2026-10795HIGHCVSS 8.1EG 8.12026-06-11
The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 via the UpdraftPlus_Remote_Communications_V2::wp_loaded function. This is due to insuffi…
- CVE-2026-42602HIGHCVSS 8.1EG 8.12026-05-13
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 configur…
- CVE-2026-0265HIGHCVSS 8.1EG 8.12026-05-13
An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is hig…
- CVE-2026-5466HIGHCVSS 8.1EG 8.12026-04-10
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 messa…
- CVE-2026-40070HIGHCVSS 8.1EG 8.12026-04-09
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 content…
- CVE-2026-34840HIGHCVSS 8.1EG 8.12026-04-02
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. isSignatu…
- CVE-2026-34377HIGHCVSS 8.1EG 8.12026-03-31
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…
- CVE-2026-4478HIGHCVSS 8.1EG 8.12026-03-20
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…
- CVE-2026-1529HIGHCVSS 8.1EG 8.12026-02-09
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 verificati…
- CVE-2026-25793HIGHCVSS 8.1EG 8.12026-02-06
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 certifica…
- CVE-2025-65295HIGHCVSS 8.1EG 8.12025-12-10
Multiple vulnerabilities in Aqara Hub firmware update process in the Camera Hub G3 4.1.9_0027, Hub M2 4.3.6_0027, and Hub M3 4.3.6_0025 devices, allow attackers to install malicious firmware without proper verification. The device fails to…
- CVE-2025-55278HIGHCVSS 8.1EG 8.12025-11-05
Improper authentication in the API authentication middleware of HCL DevOps Loop allows authentication tokens to be accepted without proper validation of their expiration and cryptographic signature. As a result, an attacker could potentia…
- CVE-2025-12295HIGHCVSS 8.1EG 8.12025-10-27
A weakness has been identified in D-Link DAP-2695 2.00RC13. The affected element is the function sub_40C6B8 of the component Firmware Update Handler. Executing manipulation can lead to improper verification of cryptographic signature. The …
- CVE-2024-49365HIGHCVSS 8.1EG 8.12025-07-01
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a malicious JSON-stringifyable message can be made passing on verify(), when global Buffer is the buffer package. This affects only environments where require('b…
- CVE-2025-27813HIGHCVSS 8.1EG 8.12025-04-10
MSI Center before 2.0.52.0 has Missing PE Signature Validation.
- CVE-2025-23206HIGHCVSS 8.1EG 8.12025-01-17
The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will downl…
- CVE-2023-52043HIGHCVSS 8.1EG 8.12024-04-03
An issue in D-Link COVR 1100, 1102, 1103 AC1200 Dual-Band Whole-Home Mesh Wi-Fi System (Hardware Rev B1) truncates Wireless Access Point Passwords (WPA-PSK) allowing an attacker to gain unauthorized network access via weak authentication c…
- CVE-2023-43660HIGHCVSS 8.1EG 8.12023-09-27
Warpgate is a smart SSH, HTTPS and MySQL bastion host for Linux that doesn't need special client apps. The SSH key verification for a user can be bypassed by sending an SSH key offer without a signature. This allows bypassing authenticatio…
- CVE-2022-24759HIGHCVSS 8.1EG 8.12022-03-17
`@chainsafe/libp2p-noise` contains TypeScript implementation of noise protocol, an encryption protocol used in libp2p. `@chainsafe/libp2p-noise` before 4.1.2 and 5.0.3 does not correctly validate signatures during the handshake process. Th…
- CVE-2021-3051HIGHCVSS 8.1EG 8.12021-09-08
An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR SAML authentication that enables an unauthenticated network-based attacker with specific knowledge of the Cortex XSOAR instance to access protected re…
- CVE-2020-11539HIGHCVSS 8.1EG 8.12020-04-22
An issue was discovered on Tata Sonata Smart SF Rush 1.12 devices. It has been identified that the smart band has no pairing (mode 0 Bluetooth LE security level) The data being transmitted over the air is not encrypted. Adding to this, the…
- CVE-2019-16732HIGHCVSS 8.1EG 8.12019-12-13
Unencrypted HTTP communications for firmware upgrades in Petalk AI and PF-103 allow man-in-the-middle attackers to run arbitrary code as the root user.
- CVE-2019-10201HIGHCVSS 8.1EG 8.12019-08-14
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can b…
- CVE-2018-7711HIGHCVSS 8.1EG 8.12018-03-05
HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during…
Map vulnerabilities like CWE-347 to your infrastructure
EchelonGraph correlates every CVE — across CWE-347 and 150+ other weakness categories — against the assets you actually run. See blast radius, fix versions, and remediation steps in one graph.
Book a Demo →