CVE-2022-41237Network attack vector

Remote code execution via unrestricted YAML type instantiation

Published Sep 21, 2022 · Updated May 28, 2025

Unsafe YAML deserialization in Jenkins DotCi Plugin 2.40.00 and earlier allows attackers to execute code via crafted .ci.yml files. The plugin's YAML parser permits arbitrary Java type instantiation when it loads repository-controlled .ci.yml configuration. Exploitation requires the ability to modify .ci.yml in a configured SCM repository, after which attacker-controlled code runs on the Jenkins controller.

CVSS severity9.8
Critical
EPSS probability1.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe YAML deserialization in Jenkins DotCi Plugin 2.40.00 and earlier allows attackers to execute code via crafted .ci.yml files. The plugin's YAML parser permits arbitrary Java type instantiation when it loads repository-controlled .ci.yml configuration. Exploitation requires the ability to modify .ci.yml in a configured SCM repository, after which attacker-controlled code runs on the Jenkins controller.

The record

CVE
CVE-2022-41237
Published
Sep 21, 2022
Updated
May 28, 2025
Vendor
Jenkins Project
Product
DotCi
Classifications
CWE-502
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2022CVE publishedPublication date reported by the CVE source.
  2. May 28, 2025Record 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=unspecified <=2.40.00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · DotCiversion=unspecified <=2.40.00

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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