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Vulnerability record · CVE-2021-21678 · published 31 August 2021

CVE-2021-21678: Jenkins saml cross-site request forgery vulnerability

Jenkins · Saml

Jenkins SAML Plugin 2.0.7 and earlier allows attackers to craft URLs that would bypass the CSRF protection of any target URL in Jenkins.

8.8 CVSS 3.1 High EPSS 0.81% · top 44.8% CWE-352 · Cross-site request forgery
8.8CVSS 3.1 base score, v2 6.8
0.81%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Jenkins SAML Plugin 2.0.7 and earlier allows attackers to craft URLs that would bypass the CSRF protection of any target URL in Jenkins.

CVSS:3.1/AV:N/AC:L/PR:N/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.

References

LinkTags
http://www.openwall.com/lists/oss-security/2021/08/31/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-08-31/#SECURITY-2469 Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/08/31/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-08-31/#SECURITY-2469 Vendor 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-2021-21678), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.