CVE-2026-53436 — Jenkins Project / Jenkins

CVE-2026-53436

Jenkins Project / Jenkins PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Jenkins Project / Jenkins	unaffected 2.568 before ; unaffected 2.555.3 before 2.555.

CWE

No CWE identifiers supplied.

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.