CVE-2019-9155
A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key.
Does this matter?
Lower severity and a low EPSS score (1.71%). Track it; it rarely justifies an emergency change on its own.
Description
A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.71% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- openpgpjs/openpgpjs
- Source
- cve@mitre.org
EPSS 1.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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/853Third Party Advisory
- https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43ePatch, Third Party Advisory
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0Release 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/853Third Party Advisory
- https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43ePatch, Third Party Advisory
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0Release 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.