8.8

CVE-2026-88808: suse rancher Execution with Unnecessary Privileges

CVSS: 8.8v3.1HighAnalyzed
Published 28-09-2026Last modified 29-09-2026
Open JSON

Vulnerability summary

CVE-2026-88808 is a high (CVSS 8.8) Execution with Unnecessary Privileges vulnerability in suse rancher. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-09-2026
    PublishedVulnerability first disclosed.
  2. 29-09-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability has been identified within Rancher Manager where the Fleet agent wrote resources to downstream clusters using its own cluster-admin credentials instead of the ServiceAccount pinned to the deployment. It affects multi-tenancy environments where different tenants share the same downstream clusters, for example different privileged or untrusted teams inside the same organization. This could lead to overwritten configuration files. This issue affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, and 0.14 before 0.14.11.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

29-09-202619-10-2026
EPSS score
0.28%

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

Suse2 products
  • rancher≥ 0.16.0, < 0.16.2 | ≥ 0.15.0, < 0.15.7 | ≥ 0.14.0, < 0.14.11
  • rancher_fleet≥ 0.14.0, < 0.14.11 | ≥ 0.15.0, < 0.15.7 | ≥ 0.16.0, < 0.16.2

1 vendor · 2 products

References

1 links