CWE-347
AllowedImproper Verification of Cryptographic Signature
Abstraction: Base · Status: Draft
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
1121 vulnerabilities reference this CWE, most recent first.
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-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-VWJ8-GGFW-43W9
Vulnerability from github – Published: 2024-12-19 00:37 – Updated: 2024-12-19 00:37A library injection vulnerability exists in Microsoft OneNote 16.83 for macOS. A specially crafted library can leverage OneNote's access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application's permissions.
{
"affected": [],
"aliases": [
"CVE-2024-41159"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-18T23:15:08Z",
"severity": "HIGH"
},
"details": "A library injection vulnerability exists in Microsoft OneNote 16.83 for macOS. A specially crafted library can leverage OneNote\u0027s access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application\u0027s permissions.",
"id": "GHSA-vwj8-ggfw-43w9",
"modified": "2024-12-19T00:37:35Z",
"published": "2024-12-19T00:37:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41159"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2024-1975"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1975"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VX7R-7H24-RM89
Vulnerability from github – Published: 2022-05-24 17:46 – Updated: 2022-05-24 17:46Union Pay up to 3.4.93.4.9, for android, contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability, allows attackers to shop for free in merchants' websites and mobile apps, via a crafted authentication code (MAC) which is generated based on a secret key which is NULL.
{
"affected": [],
"aliases": [
"CVE-2020-36284"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-06T16:15:00Z",
"severity": "HIGH"
},
"details": "Union Pay up to 3.4.93.4.9, for android, contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability, allows attackers to shop for free in merchants\u0027 websites and mobile apps, via a crafted authentication code (MAC) which is generated based on a secret key which is NULL.",
"id": "GHSA-vx7r-7h24-rm89",
"modified": "2022-05-24T17:46:35Z",
"published": "2022-05-24T17:46:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36284"
},
{
"type": "WEB",
"url": "https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0"
},
{
"type": "WEB",
"url": "https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0"
},
{
"type": "WEB",
"url": "http://mobitec.ie.cuhk.edu.hk/cve_2020"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VX8M-6FHW-PCCW
Vulnerability from github – Published: 2023-08-21 20:13 – Updated: 2023-08-21 20:13Summary
The lack of checking of current timestamp allows a LogoutRequest XML to be reused multiple times even when the current time is past the NotOnOrAfter.
Details
It was noticed that in the validatePostRequestAsync() flow in saml.js, the current timestamp is never checked. This could present a vulnerability where a user who has an XML LogoutRequest could validated it if the IssueInstance and the NotOnOrAfter are valid along with valid credentials (signature, certificate etc.).
PoC
I was able to validate a sample valid LogoutRequest XML multiple times through postman by sending it to my endpoint regardless if the current present time was past the NotOnOrAfter time. After some further testing, it seems that only the IssueInstance is checked against NotOnOrAfter. Not sure if this was the intended behaviour but I believe having a never expiring valid LogoutRequest could be dangerous.
Impact
This could impact the user where they would be logged out from an expired LogoutRequest. In bigger contexts, if LogoutRequests are sent out in mass to different SPs, this could impact many users on a large scale.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "@node-saml/node-saml"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.0.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-40178"
],
"database_specific": {
"cwe_ids": [
"CWE-347",
"CWE-613"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-21T20:13:05Z",
"nvd_published_at": "2023-08-23T21:15:08Z",
"severity": "MODERATE"
},
"details": "### Summary\n\nThe lack of checking of current timestamp allows a LogoutRequest XML to be reused multiple times even when the current time is past the NotOnOrAfter. \n\n### Details\n\nIt was noticed that in the validatePostRequestAsync() flow in saml.js, the current timestamp is never checked. This could present a vulnerability where a user who has an XML LogoutRequest could validated it if the IssueInstance and the NotOnOrAfter are valid along with valid credentials (signature, certificate etc.). \n\n### PoC\n\nI was able to validate a sample valid LogoutRequest XML multiple times through postman by sending it to my endpoint regardless if the current present time was past the NotOnOrAfter time. After some further testing, it seems that only the IssueInstance is checked against NotOnOrAfter. Not sure if this was the intended behaviour but I believe having a never expiring valid LogoutRequest could be dangerous.\n\n### Impact\n\nThis could impact the user where they would be logged out from an expired LogoutRequest. In bigger contexts, if LogoutRequests are sent out in mass to different SPs, this could impact many users on a large scale.\n",
"id": "GHSA-vx8m-6fhw-pccw",
"modified": "2023-08-21T20:13:05Z",
"published": "2023-08-21T20:13:05Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/node-saml/node-saml/security/advisories/GHSA-vx8m-6fhw-pccw"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40178"
},
{
"type": "WEB",
"url": "https://github.com/node-saml/node-saml/commit/045e3b9c54211fdb95f96edf363679845b195cec"
},
{
"type": "PACKAGE",
"url": "https://github.com/node-saml/node-saml"
},
{
"type": "WEB",
"url": "https://github.com/node-saml/node-saml/releases/tag/v4.0.5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "@node-saml/node-saml\u0027s validatePostRequestAsync does not include checkTimestampsValidityError"
}
GHSA-VXMM-5M8G-5P2C
Vulnerability from github – Published: 2023-08-09 00:31 – Updated: 2024-04-04 06:43Improper privilege management in Zoom Desktop Client for Windows and Zoom Rooms for Windows before 5.15.5 may allow an authenticated user to enable an information disclosure via local access.
{
"affected": [],
"aliases": [
"CVE-2023-39211"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-08T22:15:10Z",
"severity": "HIGH"
},
"details": "Improper privilege management in Zoom Desktop Client for Windows and Zoom Rooms for Windows before 5.15.5 may allow an authenticated user to enable an information disclosure via local access.",
"id": "GHSA-vxmm-5m8g-5p2c",
"modified": "2024-04-04T06:43:10Z",
"published": "2023-08-09T00:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39211"
},
{
"type": "WEB",
"url": "https://explore.zoom.us/en/trust/security/security-bulletin"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W2M4-8M7F-6VWV
Vulnerability from github – Published: 2022-05-24 16:49 – Updated: 2023-02-02 18:30It was found that Spacewalk, all versions through 2.8, did not safely compute client token checksums. An attacker with a valid, but expired, authenticated set of headers could move some digits around, artificially extending the session validity without modifying the checksum.
{
"affected": [],
"aliases": [
"CVE-2019-10136"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-02T20:15:00Z",
"severity": "MODERATE"
},
"details": "It was found that Spacewalk, all versions through 2.8, did not safely compute client token checksums. An attacker with a valid, but expired, authenticated set of headers could move some digits around, artificially extending the session validity without modifying the checksum.",
"id": "GHSA-w2m4-8m7f-6vwv",
"modified": "2023-02-02T18:30:55Z",
"published": "2022-05-24T16:49:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10136"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1661"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-10136"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1708696"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10136"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/109029"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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.