Vulnerability record · CVE-2021-39133 · published 30 August 2021

CVE-2021-39133: Pagerduty rundeck cross-site request forgery vulnerability

Pagerduty · Rundeck

Rundeck is an open source automation service with a web console, command line tools and a WebAPI. Prior to version 3.3.14 and version 3.4.3, a user with `admin` access to the `system` resource type is potentially vulnerable to a CSRF attack that could cause the server to run untrusted code on all Rundeck editions. Patches are available in Rundeck versions 3.4.3 and 3.3.14.

6.8 CVSS 3.1 Medium EPSS 0.45% · top 63.1% CWE-352 · Cross-site request forgery

6.8CVSS 3.1 base score, v2 6.0

0.45%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

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

Affected products

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

Rundeck Pagerduty

References

Link	Tags
https://github.com/rundeck/rundeck/commit/67c4eedeaf9509fc0b255aff15977a5229ef13b9	PatchThird Party Advisory
https://github.com/rundeck/rundeck/security/advisories/GHSA-3jmw-c69h-426c	Third Party Advisory
https://github.com/rundeck/rundeck/commit/67c4eedeaf9509fc0b255aff15977a5229ef13b9	PatchThird Party Advisory
https://github.com/rundeck/rundeck/security/advisories/GHSA-3jmw-c69h-426c	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-39133), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.