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CVE-2026-117617

HIGH
8.1
CVSS Score
Published: October 28, 2026 at 04:48 PM UTC
Updated: November 2, 2026 at 03:08 PM UTC
1 product affected across 1 vendorJenkins

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Severity
HIGH8.1
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Jenkins· Jenkinsjenkins-plugin
95%
v < 2.580.2v < 2.588
Vendor states this is fixed in 2.580.2 (unaffected)
Vendor states this is fixed in 2.588 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryMitigation
Source: cverecord
https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4248

CVSS

8.1HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-59

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