Open Redirect
CVE-2025-27625
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Lifecycle Timeline
3Blast Radius
ecosystem impact- 1 maven packages depend on org.jenkins-ci.main:jenkins-core (1 direct, 0 indirect)
Ecosystem-wide dependent count for version 2.493.
DescriptionCVE.org
In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (\) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.
AnalysisAI
In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (\) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Open Redirect (CWE-601), which allows attackers to redirect users to malicious websites via URL manipulation. In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (\) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects. Affected products include: Jenkins.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate redirect destinations against an allowlist, avoid using user input in redirect URLs.
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Vendor StatusVendor
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