CVE-2019-9153

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Improper Verification of a Cryptographic Signature in OpenPGP.js <=4.1.2 allows an attacker to forge signed messages by replacing its signatures with a "standalone" or "timestamp" signature.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.htmlThird Party Advisory, VDB Entry
https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbcPatch, Third Party Advisory
https://github.com/openpgpjs/openpgpjs/pull/816Third Party Advisory
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0Release Notes
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/Exploit, Third Party Advisory
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1Third Party Advisory
http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.htmlThird Party Advisory, VDB Entry
https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbcPatch, Third Party Advisory
https://github.com/openpgpjs/openpgpjs/pull/816Third Party Advisory
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0Release Notes
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/Exploit, Third Party Advisory
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1Third Party Advisory

Timeline

Published: Aug 22, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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