SummaryAI-written · claude-haiku-5-5AI-written · claude-haiku-5-5Written by a language model from the source data on this page. Not reviewed by a person. Generated 29 Oct 2026.
The Jenkins Command Line Interface (CLI) contains a path traversal flaw: its command parser does not disable a feature that replaces an '@' character followed by a file path in an argument with that file's contents, and this affects Jenkins 2.441 and earlier and LTS 2.426.2 and earlier. An unauthenticated attacker with network access to the Jenkins CLI can read arbitrary files from the Jenkins controller's file system by supplying a crafted '@' path argument, requiring no authentication or user interaction.
Official description · NVDSource dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. Copied from NVD.
Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not disable a feature of its CLI command parser that replaces an '@' character followed by a file path in an argument with the file's contents, allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system.
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown.Breakdown
79.9 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
2/15
How an attack unfolds
Based on MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. mappings. Select a step to see the evidence.
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 6 days after disclosure. Public exploit code (PoC-in-GitHub) was available 1 day before disclosure.
CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.
Patch historyEarlier and later CVEs in the same code, in date order. It shows when a fix was bypassed or incomplete and which version finally fixed it.
7 fixes in jenkins-core over 11 months. The latest fix listed for jenkins-core is 2.471.
Fixes in jenkins-coreMaven package, by fixed version. Earlier and later fixes in the same package, not necessarily the same bug.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
2 TechniqueOne specific attacker behaviour in MITRE ATT&CK, such as T1190 “Exploit Public-Facing Application”. IDs with a dot, like T1059.004, are sub-techniques., grouped by TacticThe attacker’s goal at a stage of an attack in MITRE ATT&CK, such as Initial Access or Persistence. Each technique belongs to one or more tactics. in kill-chain order, 2 cited passagesAIAI-writtenWritten by a language model from the source data on this page. Not reviewed by a person.2
Initial AccessTA0001
Exploit Public-Facing ApplicationT1190Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
AI-written · claude-haiku-5-5AI-written · claude-haiku-5-5Written by a language model from the source data on this page. Not reviewed by a person. claude-haiku-5-5: unauthenticated remote exploitation of public-facing CLI.AI mapping from the description · how it is exploited
unauthenticated remote exploitation of public-facing CLI
allowing unauthenticated attackers to read arbitrary files
Data from Local SystemT1005Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
AI-written · claude-haiku-5-5AI-written · claude-haiku-5-5Written by a language model from the source data on this page. Not reviewed by a person. claude-haiku-5-5: arbitrary file read on controller.AI mapping from the description · primary impact
arbitrary file read on controller
allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system
0 rules for this CVE · 163 general rules for its techniques
Rules for this CVE
0Sigma ruleAn open, vendor-neutral detection rule for log data. Security teams convert Sigma rules into searches for their own SIEM. that reference CVE-2024-23897 directly.
CVE-specific rules are not available in this build. Search SigmaHQ ↗
General rules for this CVE’s techniques
These detect the technique in general, not this specific vulnerability.
From GitHub Security Advisories and OSVSourceSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. GitHub Security Advisories and OSV.
1 package in 1 ecosystem. Main package: org.jenkins-ci.main:jenkins-core.
Set the version to 2.555.3 or later in your pom.xml or build.gradle.
First fixed in 2.442 for CVE-2024-23897.
Affected versions, by release line
If you run
Upgrade to
2.441 up to 2.442
2.555.3first fix for this CVE: 2.442
2.427 up to 2.440.1
Still affected on this line by CVE-2024-23898 (fixed in 2.442, a newer line); CVE-2025-59474 (fixed in 2.516.3, a newer line); CVE-2026-53435 (fixed in 2.555.3, a newer line).
2.440.1
1.606 up to 2.426.3
Still affected on this line by CVE-2025-59474 (fixed in 2.516.3, a newer line); CVE-2026-53435 (fixed in 2.555.3, a newer line).
2.426.3
“Up to” means the second version is the fix and is not affected.