Wallos is an open-source, self-hostable personal subscription tracker. In versions 4.8.4 and prior, the webhook notification feature reuses an administrator-configured local-target allowlist for every logged-in user. Any normal user can fully control a webhook URL, headers, and body, then use Wallos to send server-side requests to allowlisted internal automation services. When such a target exposes deployment or execution APIs, this can further enable adjacent-service RCE, but that downstream result is conditional on the target service. At time of publication, there are no publicly available patches.

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Fixes

Solution

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History

Thu, 07 May 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Ellite
Ellite wallos
Vendors & Products Ellite
Ellite wallos

Thu, 07 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 07 May 2026 14:30:00 +0000

Type Values Removed Values Added
Description Wallos is an open-source, self-hostable personal subscription tracker. In versions 4.8.4 and prior, the webhook notification feature reuses an administrator-configured local-target allowlist for every logged-in user. Any normal user can fully control a webhook URL, headers, and body, then use Wallos to send server-side requests to allowlisted internal automation services. When such a target exposes deployment or execution APIs, this can further enable adjacent-service RCE, but that downstream result is conditional on the target service. At time of publication, there are no publicly available patches.
Title Wallos: Shared local webhook allowlist lets low-privilege users send arbitrary requests to allowlisted internal services
Weaknesses CWE-863
CWE-918
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-07T14:43:47.455Z

Reserved: 2026-04-22T03:53:24.407Z

Link: CVE-2026-41689

cve-icon Vulnrichment

Updated: 2026-05-07T14:43:42.970Z

cve-icon NVD

Status : Deferred

Published: 2026-05-07T15:16:09.387

Modified: 2026-05-07T16:16:20.623

Link: CVE-2026-41689

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T15:30:05Z

Weaknesses