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CVE-2026-53437

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 tab or newline characters between `//`, allowing attackers to perform phishing attacks.

Affected (CNA)

Vendor / productVersions
Jenkins Project / Jenkinsunaffected 2.568 before *; unaffected 2.555.3 before 2.555.*

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in Jenkins. This vulnerability allows a remote attacker to perform phishing attacks by crafting a malicious redirect URL. The flaw occurs because Jenkins improperly validates redirect URLs after login, specifically when tab or newline characters are present between the `//` in the URL. This can trick users into visiting malicious sites, potentially leading to credential theft or other security compromises.