Vulnerability in Jenkins Project Bitbucket Server Integration Plugin

CVE-2026-92138

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the `oauth_callback` URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the victim.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (1.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-92138: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-92138?
CVE-2026-92138 is a medium-severity vulnerability in Jenkins Project Bitbucket Server Integration Plugin, classified under Insufficient Verification of Data Authenticity. CVSS score: 4.2/10. Published 2026-09-16.
How severe is CVE-2026-92138?
Medium severity. CVSS v3 base score is 4.2 out of 10.