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CVE-2026-117617

8.1, high

Jenkins Project Jenkins Link Following Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.1, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 8.7% of scored CVEs
Exploitation
No public evidence
Published
28 Oct 20266 days ago

Description

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier checks for symbolic links in the path of an extracted file only before creating its parent directories, not immediately before writing it, and allows symbolic links in artifacts to replace existing files or empty directories, allowing attackers with Item/Configure permission to write files to arbitrary locations on the Jenkins controller file system.

Details

Vendor
Jenkins Project
Product
Jenkins
Weakness
CWE-59 (opens in a new tab)
Status
Analyzed
Updated
2 Nov 2026
Assigner
jenkinsci-cert@googlegroups.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Jenkins Project CVEs

Every Jenkins Project CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-117612 Jenkins Project Jenkins Deserialization of Untrusted Data Vulnerability EPSS 0.2% 8.8, high
  • CVE-2026-117614 Jenkins Project Jenkins Missing Authorization Vulnerability EPSS 0.2% 7.2, high
  • CVE-2026-117616 Jenkins Project Jenkins Path Traversal Vulnerability EPSS 0.2% 8.8, high
  • CVE-2026-117618 Jenkins Project Jenkins Race Condition Vulnerability EPSS 0.2% 8.1, high
  • CVE-2026-117619 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows requests authenticated using HTTP Basic authentication, including with an API… EPSS 0.2% 8.1, high
  • CVE-2026-117620 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows attackers with Overall/Read permission to trigger warnings in the "Manage Old… EPSS 0.2% 8.8, high
  • CVE-2026-117624 Jenkins Project Jenkins Deserialization of Untrusted Data Vulnerability EPSS 0.2% 8.8, high
  • CVE-2026-92126 Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier does not reject @Builder annotations whose builderStrategy member names… EPSS 0.6% 8.5, high

Beyond this page

Is CVE-2026-117617 in your network?

This page tells you how dangerous CVE-2026-117617 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Detect it if it's exploited

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 3 Nov 2026, not the live upstream state.