5.4

CVE-2026-84666: jenkins project jenkins job configuration history plugin Improper Input Validation

CVSS: 5.4v3.1MediumAwaiting analysis
Published 02-09-2026Last modified 04-09-2026
Open JSON

Vulnerability summary

CVE-2026-84666 is a medium (CVSS 5.4) Improper Input Validation vulnerability in jenkins project jenkins job configuration history plugin. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-09-2026
    PublishedVulnerability first disclosed.
  2. 04-09-2026
    Last modifiedVulnerability information updated.

Description

Jenkins Job Configuration History Plugin 1367.vc8fa_b_15101dc and earlier allows overwriting the plugin's history recording configuration through Stapler data binding, allowing attackers to redirect history storage to an attacker-specified directory and modify history recording settings.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

+0.04 pp

From 0.10% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jenkins project1 product

1 vendor · 1 product

References

1 links