https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T12:08:58.090804+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-333251 EUVD-2026-333251 2026-10-04T12:08:58.093712+00:00 EUVD-2026-333251 https://cve.radiocsirt.org/vuln/fkie_cve-2026-44937 fkie_cve-2026-44937 2026-10-04T12:08:58.093751+00:00

Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the system.

 https://cve.radiocsirt.org/vuln/ghsa-jmf4-m7j9-g72r GHSA-jmf4-m7j9-g72r — Rancher Fleet has Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components 2026-10-04T12:08:58.093785+00:00

Affected: Go: github.com/rancher/fleet

### Impact A vulnerability has been identified in Fleet when the webhook endpoint is configured without a secret; an attacker can forge webhook requests. The attacker doesn't need to know the specific repository or path configured in the GitRepo resource to make Fleet process these requests.

An attacker can exploit this vulnerability to cause the following impacts: 1. Trigger continuous repository re-cloning, which increases network traffic and can deplete resources on the management cluster. 2. Downgrade running services to any historical revision available in the remote Git repository. This risk applies if the attacker has read access to the target Git repository and knows its configured path.

Please consult the associated [MITRE ATT&CK - Technique - T1499.004: Endpoint Denial of Service](https://attack.mitre.org/techniques/T1499/) for further information about this category of attack.

### Patches To resolve this vulnerability, upgrade Fleet to a patched version. This upgrade version escapes the URL and path to the remote repository received from webhooks, which prevents regular expressions from being used as a replacement for the URL and path.

Patched versions of Fleet include releases `v0.15.2`, `v0.14.6`, `0.13.11`, and `v0.12.15`.

### Workarounds If you can't upgrade to a fixed version, please make sure to only enable webhooks with a shared secret.

### Credits

This security issue was reported by the following collaborators according to our responsible disclosur…

 https://cve.radiocsirt.org/vuln/wid-sec-w-2026-1715 WID-SEC-W-2026-1715 — Fleet: Mehrere Schwachstellen 2026-10-04T12:08:58.093836+00:00

Ein Angreifer kann mehrere Schwachstellen in Fleet ausnutzen, um Sicherheitsmechanismen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen oder Sicherheitskonfigurationen zu manipulieren.