VYPR

CWE-347

Improper Verification of Cryptographic Signature

BaseDraft

Description

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Hierarchy (View 1000)

Parents

Children

none

Related attack patterns (CAPEC)

CAPEC-463 · CAPEC-475

CVEs mapped to this weakness (884)

page 26 of 45
  • CVE-2026-86038HigSep 17, 2026
    risk 0.42cvss 7.5epss 0.00

    libp2p is a JavaScript implementation of the libp2p networking stack. From 15.0.0 until 16.0.5, @libp2p/gossipsub uses the default StrictSign policy in packages/gossipsub/src/utils/buildRawMessage.ts, where validateToRawMessage verifies a signature with attacker-controlled…

  • CVE-2023-54355HigSep 9, 2026
    risk 0.42cvss 7.5epss 0.00

    PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an…

  • CVE-2026-85393HigSep 3, 2026
    risk 0.42cvss 7.5epss 0.00

    node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent…

  • CVE-2026-75759HigAug 30, 2026
    risk 0.42cvss —epss 0.00

    Improper Verification of Cryptographic Signature vulnerability in erlef oidcc allows an unauthenticated attacker to impersonate an arbitrary user via an encrypted ID token or JARM response carrying no nested signature. OpenID Connect Core 1.0 section 2 requires that an encrypted…

  • CVE-2026-76234HigAug 19, 2026
    risk 0.42cvss 7.5epss 0.00

    libcrux-ecdh and libcrux-ed25519 before 0.0.6, and libcrux-psq before 0.0.7, contain cryptographic implementation bugs. libcrux-ecdh did not properly check length and clamping during X25519 secret validation (and had a broken clamping check for imported X25519 secret keys);…

  • CVE-2026-50720MedAug 19, 2026
    risk 0.42cvss 6.4epss 0.00

    The Ingenic T31 SoC boot ROM flash-boot verification path compares only a single 32-bit word of the RSA signature output against a single 32-bit word of the SHA-256 payload digest, rather than compare the full data. This allows an attacker with physical write access to boot…

  • CVE-2026-56864HigAug 13, 2026
    risk 0.42cvss 7.5epss 0.00

    A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious module content that cannot be detected by evaluating the transparency log. In…

  • CVE-2026-18568HigAug 3, 2026
    risk 0.42cvss 7.5epss 0.00

    XML::Sig versions from 0.29 before 0.72 for Perl allow signature verification bypass because verify returns true when every signature was skipped before any cryptographic check. verify in lib/XML/Sig.pm counts the `//dsig:Signature` elements into `$numsigs` and iterates over…

  • CVE-2026-59643HigAug 3, 2026
    risk 0.42cvss 7.5epss 0.00

    In Bouncy Castle for Java before 1.85, OpenPGP inline-signature policy failures silently ignored. This issue also affects Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 2.0.13.

  • CVE-2026-59639HigAug 3, 2026
    risk 0.42cvss 7.5epss 0.00

    In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series)…

  • CVE-2026-55735HigAug 1, 2026
    risk 0.42cvss 7.5epss 0.00

    Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification (it…

  • CVE-2026-13089HigJul 22, 2026
    risk 0.42cvss 7.5epss 0.00

    OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify. When the caller does not pin an algorithm, OIDC::Lite::Model::IDToken::verify sets $self->alg($self->header->{alg}) from the token's…

  • CVE-2026-7511HigJun 25, 2026
    risk 0.42cvss 7.5epss 0.00

    PKCS7_verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be accepted.

  • CVE-2026-6331HigJun 25, 2026
    risk 0.42cvss 7.5epss 0.00

    HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or…

  • CVE-2026-55961HigJun 25, 2026
    risk 0.42cvss 7.5epss 0.00

    wolfSSL_PKCS7_verify() returning success for a degenerate (certs-only) PKCS#7 object that contains no signer. Such an object has empty signerInfos, so the underlying signed-data verification succeeds without authenticating any content. The compatibility-layer verify path now…

  • CVE-2026-42743MedJun 15, 2026
    risk 0.42cvss 6.5epss 0.00

    Unauthenticated Broken Authentication in Masteriyo - LMS <= 2.1.8 versions.

  • CVE-2026-50010HigJun 12, 2026
    risk 0.42cvss 7.5epss 0.00

    Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers() and related paths wrap any user-supplied plain X509TrustManager in…

  • CVE-2026-39829HigMay 22, 2026
    risk 0.42cvss 7.5epss 0.00

    The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated…

  • CVE-2026-44714HigMay 15, 2026
    risk 0.42cvss 7.5epss 0.00

    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/ScriptExecution.java. In both…

  • CVE-2026-42501HigMay 7, 2026
    risk 0.42cvss 7.5epss 0.00

    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 module proxy can…