CVE-2026-53437

EUVD-2026-36021
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.
Open Redirect
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 38.98%
Affected Products (NVD)
VendorProductVersion
jenkinsjenkins
𝑥
< 2.555.3
jenkinsjenkins
𝑥
< 2.568
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatOpenShift Developer Tools and Services 4.12
1786628667 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.13
1786628681 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.14
1786533561 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.15
1786533565 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.16
1787125166 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.17
1787124635 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.18
1787125069 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.19
1787124632 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.20
1787124925 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.21
1787125311 ≤
𝑥
< *
ADP
Red HatOpenShift Developer Tools and Services 4.22
1787124779 ≤
𝑥
< *
ADP