Skip to main content
Public proof of conceptFix available

CVE-2019-9153

A public proof of concept exists; no exploitation attested.

  • Published2019-08-22
  • Fixed in4.2.0
  • WeaknessCWE-347

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-08-2216:15CVE publishedNVD

Versions per branch

OSV · NVD
openpgp
BranchAffectedFixed in
4.2< 4.2.04.2.0
Openpgpjs
BranchAffectedFixed in
4.1≤ 4.1.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update openpgp to 4.2.0

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2019-08-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-qwqc-28w3-fww6

Frequently asked questions

What is CVE-2019-9153?

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.

Is CVE-2019-9153 actively exploited?

Active exploitation of CVE-2019-9153 has not been confirmed. Its EPSS score was 2.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9153?

CVE-2019-9153 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Running openpgp? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record