CVE-2024-23897Known exploitationPublic exploitNetwork attack vector

Unauthenticated partial file read via CLI expansion

Published Jan 24, 2024 · Updated Oct 21, 2025

Arbitrary file read in Jenkins 2.441 and earlier and LTS 2.426.2 and earlier allows remote attackers to read controller files via CLI. The CLICommand parsers leave args4j expandAtFiles enabled, replacing an @-prefixed path argument with that file's contents without restricting the path. Attackers without Overall/Read permission obtain the first few lines, while that permission exposes entire files subject to character-encoding limits.

CVSS severityUnavailable
Unscored
EPSS probability100.00%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file read in Jenkins 2.441 and earlier and LTS 2.426.2 and earlier allows remote attackers to read controller files via CLI. The CLICommand parsers leave args4j expandAtFiles enabled, replacing an @-prefixed path argument with that file's contents without restricting the path. Attackers without Overall/Read permission obtain the first few lines, while that permission exposes entire files subject to character-encoding limits.

The record

CVE
CVE-2024-23897
Published
Jan 24, 2024
Updated
Oct 21, 2025
Vendor
Jenkins Project
Product
Jenkins
Classifications
CWE-22, CWE-27, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · JenkinsAffected versions are unavailable in this record.

Published CVSS scores

9.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A

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 IPsShadowserver observations through Sep 15, 2026. Gaps indicate unavailable data.
Sep 9, 2026Sep 15, 2026
View daily counts
Reporting dayUnique IPs
Sep 9, 2026Unavailable
Sep 10, 2026Unavailable
Sep 11, 2026Unavailable
Sep 12, 2026Unavailable
Sep 13, 2026Unavailable
Sep 14, 202610
Sep 15, 20263
Latest reporting daySep 15, 2026
Latest daily unique IPs3
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-27Path Traversal: 'dir/../../filename'
T1005Data from Local System

Public exploit references

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

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

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