CVE-2026-93539

medium

A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service).

Vendor / product: Suse — rancher fleet

A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside the namespaces they are authorized for. This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.

CVSS

5.4

5.4 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (meissner@suse.de)

Timeline (UTC)

Published: 2026-09-28 15:17

Modified: 2026-10-07 17:08

NVD status: Analyzed

Last synced 3 days ago

Verified against the source API 2026-10-27 06:56 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

suse / rancher_fleet ≥0.16.0 <0.16.2

Weakness classification (CWE)

CWE-306

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/rancher/fleet/security/advisories/GHSA-8vfv-33cg-g75q

References

https://github.com/rancher/fleet/security/advisories/GHSA-8vfv-33cg-g75q meissner@suse.de

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

CVE-2026-93539

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

Learn the basics

Related CVEs