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  1. CVEs
  2. CVE-2026-53437
  1. CVEs

CVE-2026-53437

high
  • Information
  • CPEs
  • Plugins

Description

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.

References

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

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53437.json

https://bugzilla.redhat.com/show_bug.cgi?id=2487544

https://access.redhat.com/security/cve/CVE-2026-53437

https://access.redhat.com/errata/RHSA-2026:60259

https://access.redhat.com/errata/RHSA-2026:60256

https://access.redhat.com/errata/RHSA-2026:60254

https://access.redhat.com/errata/RHSA-2026:60252

https://access.redhat.com/errata/RHSA-2026:60251

https://access.redhat.com/errata/RHSA-2026:60250

https://access.redhat.com/errata/RHSA-2026:60249

https://access.redhat.com/errata/RHSA-2026:60248

https://access.redhat.com/errata/RHSA-2026:60247

https://access.redhat.com/errata/RHSA-2026:60246

https://access.redhat.com/errata/RHSA-2026:60239

Details

Source: Mitre, NVD

Published: 2026-06-10

Updated: 2026-08-27

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.4

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00028

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