GHSA-r8fj-rff6-f7h5

ghsaUSosv

Jenkins Bitbucket OAuth Plugin does not restrict the redirect URL after login

view advisory published 2026-05-27Licence: CC-BY-4.0

Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login. This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication. Bitbucket OAuth Plugin 0.18 only redirects to relative (Jenkins) URLs.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-48924US	—	0.21% (11th)	—	2026-05-27
Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

references

External citations — patches, advisories, analysis.

https://github.com/jenkinsci/bitbucket-oauth-pluginPACKAGE
https://nvd.nist.gov/vuln/detail/CVE-2026-48924ADVISORY
https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3761WEB

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