What is CVE-2021-21638?

CVE-2021-21638 is a high-severity vulnerability in Jenkins Team Foundation Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-30.

How severe is CVE-2021-21638?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Jenkins Team Foundation Server

CVE-2021-21638

A cross-site request forgery (CSRF) vulnerability in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.008 (53.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jenkins Team_foundation_server
Jenkins Project Team Foundation Server Plugin — versions unspecified, next of 5.157.1

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21638?: CVE-2021-21638 is a high-severity vulnerability in Jenkins Team Foundation Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-30.
How severe is CVE-2021-21638?: High severity. CVSS v3 base score is 8.8 out of 10.