Jenkins Microsoft Entra ID (previously Azure AD) Plugin has an open redirect vulnerability

published 2026-04-29 6 mo ago modified 2026-10-26 13 d ago also GHSA-jp6g-g3v3-6gvf , EUVD-2026-26227

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

Jenkins Microsoft Entra ID (previously Azure AD) Plugin 666.v6060de32f87d and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

Patch / fix

fixed in 1

maven org.jenkins-ci.plugins:azure-ad 667.v4c5827a

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-29)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
GitHub	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.plugins:azure-ad	<667.v4c5827a	667.v4c5827a

Affected products

Jenkins Project Jenkins Microsoft Entra ID (previously Azure AD) Plugin

Classification

Weakness

CWE-601 URL Redirection to Untrusted Site

References

jenkins.io /security/advisory/2026-04-29/#SECURITY-3760
vendor-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-42525
advisory
github.com /jenkinsci/azure-ad-plugin
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary