CWE-347
AllowedImproper Verification of Cryptographic Signature
Abstraction: Base · Status: Draft
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
1321 vulnerabilities reference this CWE, most recent first.
GHSA-VJRP-J935-MWH9
Vulnerability from github – Published: 2022-03-05 00:00 – Updated: 2022-03-17 00:03STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to obtain information on cryptographic secrets. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE-J in closed configuration and J-SIGN (when signature verification is activated) but not for J-SAFE3 EPASS BAC and EAC products. It might also impact other products based on the J-SAFE-3 Java Card platform.
{
"affected": [],
"aliases": [
"CVE-2021-43392"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-04T13:15:00Z",
"severity": "MODERATE"
},
"details": "STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to obtain information on cryptographic secrets. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE-J in closed configuration and J-SIGN (when signature verification is activated) but not for J-SAFE3 EPASS BAC and EAC products. It might also impact other products based on the J-SAFE-3 Java Card platform.",
"id": "GHSA-vjrp-j935-mwh9",
"modified": "2022-03-17T00:03:34Z",
"published": "2022-03-05T00:00:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43392"
},
{
"type": "WEB",
"url": "https://community.st.com/s/toparticles"
},
{
"type": "WEB",
"url": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VJXV-45G9-9296
Vulnerability from github – Published: 2022-08-10 18:40 – Updated: 2022-08-10 18:40cosign verify-attestation used with the --type flag will report a false positive verification when:
- There is at least one attestation with a valid signature
- There are NO attestations of the type being verified (--type defaults to "custom")
This can happen when signing with a standard keypair and with "keyless" signing with Fulcio. Users should upgrade to cosign version 1.10.1 or greater for a patch. Currently the only workaround is to upgrade.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/sigstore/cosign"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-35929"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": true,
"github_reviewed_at": "2022-08-10T18:40:38Z",
"nvd_published_at": "2022-08-04T19:15:00Z",
"severity": "HIGH"
},
"details": "`cosign verify-attestation` used with the `--type` flag will report a false positive verification when:\n\n- There is at least one attestation with a valid signature\n- There are NO attestations of the type being verified (--type defaults to \"custom\")\n\nThis can happen when signing with a standard keypair and with \"keyless\" signing with Fulcio. Users should upgrade to cosign version 1.10.1 or greater for a patch. Currently the only workaround is to upgrade.",
"id": "GHSA-vjxv-45g9-9296",
"modified": "2022-08-10T18:40:38Z",
"published": "2022-08-10T18:40:38Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35929"
},
{
"type": "WEB",
"url": "https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94"
},
{
"type": "PACKAGE",
"url": "https://github.com/sigstore/cosign"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "cosign\u0027s `cosign verify-attestaton --type` can report a false positive if any attestation exists"
}
GHSA-VM9R-H74P-HG97
Vulnerability from github – Published: 2026-03-31 23:09 – Updated: 2026-03-31 23:09Impact
A vulnerability in jose versions up to and including 0.3.5 could allow an unauthenticated, remote attacker to forge valid JWS/JWT tokens by using a key embedded in the JOSE header (jwk).
The vulnerability exists because key selection could treat header-provided jwk as a verification candidate even when that key was not present in the trusted key store. Since JOSE headers are untrusted input, an attacker could exploit this by creating a token payload, embedding an attacker-controlled public key in the header, and signing with the matching private key.
Applications using affected versions for token verification are impacted.
Patches
Upgrade to 0.3.5+1 or later.
Workarounds
Reject tokens where header jwk is present unless that jwk matches a key already present in the application's trusted key store.
Resources
Fix commit: fix: improved key resolution in JsonWebKeyStore
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.3.5"
},
"package": {
"ecosystem": "Pub",
"name": "jose"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.5+1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-34240"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-31T23:09:16Z",
"nvd_published_at": "2026-03-31T16:16:33Z",
"severity": "HIGH"
},
"details": "### Impact\n\nA vulnerability in `jose` versions up to and including `0.3.5` could allow an unauthenticated, remote attacker to forge valid JWS/JWT tokens by using a key embedded in the JOSE header (`jwk`). \n\nThe vulnerability exists because key selection could treat header-provided `jwk` as a verification candidate even when that key was not present in the trusted key store. Since JOSE headers are untrusted input, an attacker could exploit this by creating a token payload, embedding an attacker-controlled public key in the header, and signing with the matching private key. \n\nApplications using affected versions for token verification are impacted.\n\n### Patches\n\nUpgrade to `0.3.5+1` or later.\n\n### Workarounds\n\nReject tokens where header `jwk` is present unless that `jwk` matches a key already present in the application\u0027s trusted key store.\n\n### Resources\n\nFix commit: [fix: improved key resolution in JsonWebKeyStore](https://github.com/appsup-dart/jose/commit/b07799aac1f56a9a21483feac026272aab30cc5d)",
"id": "GHSA-vm9r-h74p-hg97",
"modified": "2026-03-31T23:09:16Z",
"published": "2026-03-31T23:09:16Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/appsup-dart/jose/security/advisories/GHSA-vm9r-h74p-hg97"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34240"
},
{
"type": "WEB",
"url": "https://github.com/appsup-dart/jose/commit/b07799aac1f56a9a21483feac026272aab30cc5d"
},
{
"type": "PACKAGE",
"url": "https://github.com/appsup-dart/jose"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "jose vulnerable to untrusted JWK header key acceptance during signature verification"
}
GHSA-VPXH-P969-8368
Vulnerability from github – Published: 2022-05-13 01:12 – Updated: 2022-05-13 01:12Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have a security bypass vulnerability. Successful exploitation could lead to information disclosure.
{
"affected": [],
"aliases": [
"CVE-2018-16042"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-18T17:29:00Z",
"severity": "MODERATE"
},
"details": "Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have a security bypass vulnerability. Successful exploitation could lead to information disclosure.",
"id": "GHSA-vpxh-p969-8368",
"modified": "2022-05-13T01:12:09Z",
"published": "2022-05-13T01:12:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16042"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-41.html"
},
{
"type": "WEB",
"url": "https://pdf-insecurity.org/signature/evaluation_2018.html"
},
{
"type": "WEB",
"url": "https://pdf-insecurity.org/signature/signature.html"
},
{
"type": "WEB",
"url": "https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106159"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VQ8W-MHC4-P67J
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:58RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. A malicious remote attacker could potentially exploit this vulnerability to coerce two parties into computing the same predictable shared key.
{
"affected": [],
"aliases": [
"CVE-2019-3738"
],
"database_specific": {
"cwe_ids": [
"CWE-325",
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-18T23:15:00Z",
"severity": "MODERATE"
},
"details": "RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. A malicious remote attacker could potentially exploit this vulnerability to coerce two parties into computing the same predictable shared key.",
"id": "GHSA-vq8w-mhc4-p67j",
"modified": "2024-04-04T01:58:26Z",
"published": "2022-05-24T16:56:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3738"
},
{
"type": "WEB",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10318"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/security/en-us/details/DOC-106556/DSA-2019-094-RSA-BSAFE\u0026#174%3B-Crypto-J-Multiple-Security-Vulnerabilities"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/security/en-us/details/DOC-106556/DSA-2019-094-RSA-BSAFE\u0026#174;-Crypto-J-Multiple-Security-Vulnerabilities"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VQXM-CGMV-2PCR
Vulnerability from github – Published: 2026-09-09 06:31 – Updated: 2026-09-09 06:31An 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 compares the tag. On a forged tag, the functions returns false, but the destination buffer already holds the full plaintext.
{
"affected": [],
"aliases": [
"CVE-2026-87732"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-09T05:18:20Z",
"severity": "MODERATE"
},
"details": "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 compares the tag. On a forged tag, the functions returns false, but the destination buffer already holds the full plaintext.",
"id": "GHSA-vqxm-cgmv-2pcr",
"modified": "2026-09-09T06:31:39Z",
"published": "2026-09-09T06:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87732"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/OSEC-2026-12"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VR9W-FP6C-VJ58
Vulnerability from github – Published: 2025-04-16 18:31 – Updated: 2025-04-16 18:31A vulnerability in the web-based management interface of Cisco Secure Network Analytics could allow an authenticated, remote attacker with valid administrative credentials to execute arbitrary commands as root on the underlying operating system.
This vulnerability is due to insufficient integrity checks within device backup files. An attacker with valid administrative credentials could exploit this vulnerability by crafting a malicious backup file and restoring it to an affected device. A successful exploit could allow the attacker to obtain shell access on the underlying operating system with the privileges of root.
{
"affected": [],
"aliases": [
"CVE-2025-20178"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T16:15:29Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the web-based management interface of Cisco Secure Network Analytics could allow an authenticated, remote attacker with valid administrative credentials to execute arbitrary commands as root on the underlying operating system.\n\n\nThis vulnerability is due to insufficient integrity checks within device backup files. An attacker with valid administrative credentials could exploit this vulnerability by crafting a malicious backup file and restoring it to an affected device. A successful exploit could allow the attacker to obtain shell access on the underlying operating system with the privileges of root.",
"id": "GHSA-vr9w-fp6c-vj58",
"modified": "2025-04-16T18:31:50Z",
"published": "2025-04-16T18:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20178"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-prvesc-4BQmK33Z"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VRWH-33VR-JG7W
Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-06-26 21:32The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.
{
"affected": [],
"aliases": [
"CVE-2024-23581"
],
"database_specific": {
"cwe_ids": [
"CWE-1104",
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-26T21:16:32Z",
"severity": "MODERATE"
},
"details": "The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.",
"id": "GHSA-vrwh-33vr-jg7w",
"modified": "2026-06-26T21:32:18Z",
"published": "2026-06-26T21:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23581"
},
{
"type": "WEB",
"url": "https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0131417"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VW3M-3X7W-24G8
Vulnerability from github – Published: 2026-09-10 18:31 – Updated: 2026-09-10 18:31passport-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 with arbitrary NameID and attributes to the assertion consumer service endpoint to receive authenticated profiles without valid signatures.
{
"affected": [],
"aliases": [
"CVE-2026-89042"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-10T18:18:15Z",
"severity": "CRITICAL"
},
"details": "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 with arbitrary NameID and attributes to the assertion consumer service endpoint to receive authenticated profiles without valid signatures.",
"id": "GHSA-vw3m-3x7w-24g8",
"modified": "2026-09-10T18:31:50Z",
"published": "2026-09-10T18:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89042"
},
{
"type": "WEB",
"url": "https://github.com/krakenjs/passport-saml-encrypted/issues/29"
},
{
"type": "WEB",
"url": "https://github.com/krakenjs/passport-saml-encrypted"
},
{
"type": "WEB",
"url": "https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L296"
},
{
"type": "WEB",
"url": "https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L321"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-authentication-bypass-via-missing-signature-verification"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-VW9V-MPFH-QWG3
Vulnerability from github – Published: 2026-08-11 09:32 – Updated: 2026-08-12 18:31A 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 protected application.
{
"affected": [],
"aliases": [
"CVE-2026-15556"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T09:17:12Z",
"severity": "HIGH"
},
"details": "A flaw was found in Picketlink\u0027s 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 protected application.",
"id": "GHSA-vw9v-mpfh-qwg3",
"modified": "2026-08-12T18:31:06Z",
"published": "2026-08-11T09:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15556"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:53644"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:53806"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-15556"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483121"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
No mitigation information available for this CWE.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.