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CVE-2026-25705

Rancher Extensions have arbitrary file access via path traversal

Published: May 13, 2026Updated: May 13, 2026 Sources: CVE List NVDCWE-35
8.4HIGH
NVD MITRE
EPSS Score
0.4%
Top 71.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A vulnerability has been identified in [Rancher's Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code. * Write to /var/lib/rancher/ to tamper with cluster state. * If hostPath volumes are mounted, write to the host node filesystem. * Use this issue to chain with other attack vectors.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-35

Affected Products

rancherSUSE
On-prem
DevTools & CI / ci-cd
susecommercialDEOperating Systems

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705
bugzilla.suse.com
https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35
github.com

Timeline

Published
May 13, 2026
Last Updated
May 13, 2026

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