CVE-2026-41689: CWE-863: Incorrect Authorization in ellite Wallos
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.
AI Analysis
Technical Summary
Wallos, an open-source personal subscription tracker, has an incorrect authorization vulnerability (CWE-863) in its webhook notification feature. The system reuses an admin-configured local-target allowlist for every logged-in user, enabling normal users to manipulate webhook URLs, headers, and bodies. This allows sending server-side requests to internal automation services that are allowlisted. If these internal services expose APIs for deployment or execution, this can potentially lead to adjacent-service remote code execution (CWE-918). The vulnerability affects Wallos versions up to 4.8.4. No official remediation or patch is available as of the publication date.
Potential Impact
The vulnerability allows authenticated users to abuse the webhook feature to send requests to internal allowlisted services, potentially leading to unauthorized actions within those services. This can result in limited confidentiality, integrity, and availability impacts on the Wallos system and connected internal services. The possibility of remote code execution depends on the configuration and exposure of downstream internal services. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict user permissions to trusted users only and monitor usage of the webhook feature closely. Avoid exposing sensitive internal automation services or deployment APIs to allowlisted webhook targets. Consider disabling the webhook notification feature if feasible until a patch is available.
CVE-2026-41689: CWE-863: Incorrect Authorization in ellite Wallos
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Wallos, an open-source personal subscription tracker, has an incorrect authorization vulnerability (CWE-863) in its webhook notification feature. The system reuses an admin-configured local-target allowlist for every logged-in user, enabling normal users to manipulate webhook URLs, headers, and bodies. This allows sending server-side requests to internal automation services that are allowlisted. If these internal services expose APIs for deployment or execution, this can potentially lead to adjacent-service remote code execution (CWE-918). The vulnerability affects Wallos versions up to 4.8.4. No official remediation or patch is available as of the publication date.
Potential Impact
The vulnerability allows authenticated users to abuse the webhook feature to send requests to internal allowlisted services, potentially leading to unauthorized actions within those services. This can result in limited confidentiality, integrity, and availability impacts on the Wallos system and connected internal services. The possibility of remote code execution depends on the configuration and exposure of downstream internal services. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict user permissions to trusted users only and monitor usage of the webhook feature closely. Avoid exposing sensitive internal automation services or deployment APIs to allowlisted webhook targets. Consider disabling the webhook notification feature if feasible until a patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-22T03:53:24.407Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fca382cbff5d8610fd58e2
Added to database: 5/7/2026, 2:36:50 PM
Last enriched: 5/7/2026, 2:52:32 PM
Last updated: 5/8/2026, 11:01:35 AM
Views: 11
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.