CVE-2019-14855

gnupg2: OpenPGP Key Certification Forgeries with SHA-1

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Severity

Low

Red Hat Product Security

5.3

CVSS 3.0

Review impact separately from score.

Published · January 9, 2020

Updated · November 22, 2025

Description

A flaw was found in OpenPGP Key Certification Forgeries in the way certificate signatures could be forged by using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures.

Statement

This flaw only affects the versions of GnuPG package which defaults to signing with SHA-1. GnuPG 2.0 and above does not use SHA-1 by default therefore are not directly affected by this flaw.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.3
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

CWE-326 · Inadequate Encryption Strength