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Vulnerability record · CVE-2019-13050 · published 29 June 2019

CVE-2019-13050: Gnupg improper certificate validation vulnerability

Gnupg · Gnupg

Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.

7.5 CVSS 3.1 High EPSS 2.7% · top 14.9% CWE-295 · Improper certificate validation
7.5CVSS 3.1 base score, v2 5.0
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
22References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00039.html Mailing ListThird Party Advisory
https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f ExploitIssue TrackingMitigationThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUK2YRO6QIH64WP2LRA5D4L
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CP4ON34YEXEZDZOXXWV43KV
https://lists.gnupg.org/pipermail/gnupg-announce/2019q3/000439.html Third Party Advisory
https://support.f5.com/csp/article/K08654551 Third Party Advisory
https://support.f5.com/csp/article/K08654551?utm_source=f5support&amp%3Butm_medium=RSS
https://twitter.com/lambdafu/status/1147162583969009664 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00039.html Mailing ListThird Party Advisory
https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f ExploitIssue TrackingMitigationThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUK2YRO6QIH64WP2LRA5D4L
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CP4ON34YEXEZDZOXXWV43KV
https://lists.gnupg.org/pipermail/gnupg-announce/2019q3/000439.html Third Party Advisory
https://support.f5.com/csp/article/K08654551 Third Party Advisory
https://support.f5.com/csp/article/K08654551?utm_source=f5support&amp%3Butm_medium=RSS
https://twitter.com/lambdafu/status/1147162583969009664 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-13050), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.