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4.3mediumMedium

CVE-2026-53437

Jenkins Jenkins

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.

Exploitation status

  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, no account is needed.
  • Beyond that, someone has to be persuaded to take an action first.

Scoring

CVSS
4.3 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness
CWE-601
Assigned by
jenkinsci-cert@googlegroups.com

Dates

Published
2026-06-10
Last modified
2026-08-27
Sources
NVD

Affected products

  • Jenkins Jenkins- 2.555.3, - 2.568

As listed in the NVD configuration data. Not a statement about your estate.

References