CWE-347— Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.— MITRE CWE catalog
864 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-347page 18 of 18
- CVE-2026-86585HIGHCVSS 7.7EG 7.72026-09-16
The lack of signature verification of firmware update packages in VEO and VEO-XS Wi-Fi monitors, in versions prior to 01.48.001, allows an attacker who controls the delivery of an update to install unauthorised firmware.
- CVE-2026-87732MEDIUMCVSS 6.2EG 6.22026-09-09
An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate_decrypt_into and Chacha20.authenticate_decrypt_into functions write the decrypted plaintext into a caller-provided buffer and only then c…
- CVE-2026-87802CRITICALCVSS 9.1EG 9.12026-09-14
Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions,…
- CVE-2026-89042CRITICALCVSS 9.1EG 9.12026-09-10
passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses wi…
- CVE-2026-89043HIGHCVSS 7.4EG 7.42026-09-10
passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation. Attackers holding any validly signed SAML…
- CVE-2026-89086CRITICALCVSS 9.1EG 9.12026-09-10
In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.
- CVE-2026-89169MEDIUMCVSS 4.1EG 4.12026-09-11
live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.
- CVE-2026-9027MEDIUMCVSS 5.3EG 5.32026-07-09
The CorvusPay WooCommerce Payment Gateway plugin for WordPress is vulnerable to Payment Bypass via Improper Verification of Cryptographic Signature in all versions up to, and including, 2.7.4. The `corvuspay_success_handler` function regis…
- CVE-2026-92718HIGHCVSS 7.3EG 7.32026-09-16
Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verified templates with unsigned malicious content and restore the original modificat…
- CVE-2026-93657HIGHCVSS 7.5EG 7.52026-09-18
hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the ans…
- CVE-2026-9487CRITICALCVSS 9.1EG 9.12026-08-03
XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID. _get_signed_xml() in lib/XML/Sig.pm, called from verify(), resolves the SignedInfo Reference/@URI to a node with the XPath expression "//*[@ID='$id']" and r…
- CVE-2026-9779HIGHCVSS 7.2EG 7.22026-06-24
ATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ATEN Unizon. Authent…
- CVE-2026-9793HIGHCVSS 7.5EG 7.52026-05-28
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This al…
- CVE-2026-9832MEDIUMCVSS 5.3EG 5.32026-09-19
The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and including, 5.0.8. This is due to the publicly accessible `woocommerce_api_wt_st…
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