Vulnerability · Published Aug 5, 2026 · Assigned by jenkins
CVE-2026-70429
High 8.1
In plain English
A high-severity security flaw in Jenkins 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 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 63.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins | see references |
Weakness: CWE-178 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- Jenkins Security Advisory 2026-08-05 vendor-advisory