8.4

CVE-2026-25705: suse rancher Path Traversal: '.../...//'

CVSS: 8.4v3.1HighAwaiting analysis
AliasesGHSA-5v3h-x4wf-5c35GO-2026-5154CGA-4939-66rw-j2wm
Published 13-05-2026Last modified 14-05-2026
Open JSON

Vulnerability summary

CVE-2026-25705 is a high (CVSS 8.4) Path Traversal: '.../...//' vulnerability in suse rancher. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.9% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · +0.12 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 2
OPENSUSE-SU-2026:21483-1CGA-7XM3-8724-7GVJ

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 14-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

+0.12 pp

From 0.37% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard4 products
  • harvester< 1.8.1-r1
  • harvester-fips< 1.8.1-r0
  • harvester-fips-webhook< 1.8.1-r0
  • harvester-webhook< 1.8.1-r1
Github.com/rancher1 product
  • rancher≥ 2.14.0, < 2.14.1 | ≥ 2.13.0, < 2.13.5 | ≥ 2.12.0, < 2.12.9 | ≥ 2.10.11, < 2.11.13 | All versions (No fix recorded)
Suse1 product
  • rancher≥ 2.14.0, < 2.14.1 | ≥ 2.13.0, < 2.13.5 | ≥ 2.12.0, < 2.12.9 | ≥ 2.10.11, < 2.11.13

3 vendors · 6 products

References

5 links