CVE-2026-53436

Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains relative path segments (`./` or `../`), allowing attackers to perform phishing attacks.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:jenkins:jenkins:::::lts:::*
	cpe:2.3:a:jenkins:jenkins:::::-:::*

History

11 Jun 2026, 13:24

Type	Values Removed	Values Added
References	~~() https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755 -~~	() https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755 - Vendor Advisory
CPE		cpe:2.3:a:jenkins:jenkins:::::lts:::* cpe:2.3:a:jenkins:jenkins:::::-:::*
First Time		Jenkins jenkins Jenkins

10 Jun 2026, 16:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3
CWE		CWE-601

10 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-10 14:16

Updated : 2026-06-17 10:57

NVD link : CVE-2026-53436

Mitre link : CVE-2026-53436

CVE.ORG link : CVE-2026-53436

JSON object : View

Products Affected

jenkins

jenkins

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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