CVE-2026-9674Network attack vector

Build resumption via non-POST endpoint

Published May 27, 2026 · Updated May 27, 2026

CSRF in Jenkins Multijob Plugin 662.vd2e0001f6b_b_d and earlier allows remote attackers to resume failed Multijob builds. The affected resume-build HTTP endpoint accepts state-changing requests without requiring POST, so a browser can submit them cross-site. Exploitation requires an authenticated Jenkins user to load attacker-controlled content, and the bounded effect is resumption of a failed Multijob build.

CVSS severity4.3
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in Jenkins Multijob Plugin 662.vd2e0001f6b_b_d and earlier allows remote attackers to resume failed Multijob builds. The affected resume-build HTTP endpoint accepts state-changing requests without requiring POST, so a browser can submit them cross-site. Exploitation requires an authenticated Jenkins user to load attacker-controlled content, and the bounded effect is resumption of a failed Multijob build.

The record

CVE
CVE-2026-9674
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Jenkins Project
Product
Multijob Plugin
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=662.vd2e0001f6b_b_d

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Multijob Pluginversion=0 <=662.vd2e0001f6b_b_d

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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