{"id":"CVE-2026-41689","aliases":["EUVD-2026-28385","GHSA-jx6w-832g-42wv"],"status":"published","title":"Wallos: Shared local webhook allowlist lets low-privilege users send arbitrary requests to allowlisted internal services","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.","severity":{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00176,"percentile":0.07112,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863","CWE-918"],"published":"2026-05-07T13:53:12Z","modified":"2026-10-28T02:31:04Z","products":[{"vendor":"ellite","product":"wallos"}],"references":[{"url":"https://github.com/ellite/Wallos/security/advisories/GHSA-jx6w-832g-42wv","tags":["x_refsource_CONFIRM","exploit","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41689.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41689","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-41689","title":"Wallos: Shared local webhook allowlist lets low-privilege users send arbitrary requests to allowlisted internal services","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.","status":"published","published":"2026-05-07T13:53:12.952Z","modified":"2026-05-07T14:43:47.455Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-863","CWE-918"],"updated_at":"2026-11-02T13:41:19.694734Z"}],"euvd":[{"id":"EUVD-2026-28385","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.","status":"published","published":"2026-05-07T13:53:12Z","modified":"2026-05-07T14:43:47Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:05:14.902845Z"}],"nvd":[{"id":"CVE-2026-41689","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.","status":"published","published":"2026-05-07T15:16:09.387Z","modified":"2026-10-26T20:10:00.16Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-863","CWE-918"],"updated_at":"2026-11-02T14:12:17.842772Z"}],"osv":[{"id":"CVE-2026-41689","title":"Wallos: Shared local webhook allowlist lets low-privilege users send arbitrary requests to allowlisted internal services","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.","status":"published","published":"2026-05-07T13:53:12.952Z","modified":"2026-10-28T02:31:04.354788765Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-863","CWE-918"],"updated_at":"2026-11-02T15:45:03.764807Z"}]}}