Vulnerability · Published Sep 16, 2026 · Assigned by jenkins

CVE-2026-92138

Medium 4.2

In plain English

A medium-severity insufficient verification of data authenticity in Jenkins Bitbucket Server Integration Plugin from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.1%top 98.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Jenkins Project	Jenkins Bitbucket Server Integration Plugin	0 – through 6.0.1

Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

References

Jenkins Security Advisory 2026-09-16 vendor-advisory