SB20260806105 - Multiple vulnerabilities in Jenkins SCM-Manager plugin



SB20260806105 - Multiple vulnerabilities in Jenkins SCM-Manager plugin

Published: August 6, 2026

Security Bulletin ID SB20260806105
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper access control (CVE-ID: CVE-2026-70434)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the affected plugin does not perform permission checks in several HTTP endpoints. A remote user can connect to an attacker-specified HTTP URL using attacker-specified credentials IDs.


2) Cross-site request forgery (CVE-ID: CVE-2026-70435)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote user can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.


Remediation

Install update from vendor's website.