CVE-2026-84670CWE-502insecure-deserialization

CVE-2026-84670

High · published September 2, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
49.9
In the wild
Unconfirmed
What it is

Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier does not restrict the classes that can be instantiated when deserializing cached performance reports stored in the build directory on the Jenkins controller, allowing attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00638 · 49.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-02T20:17Z
References (1)
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4026 · [email protected]
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 02 SEP 15:40Z
    Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier does not restrict the classes that can be instantiated when deserializing cached performance…
    cvelistv5