CVE-2026-61739: SOCFortress CoPilot: Authentication Bypass and Missing Authorization on Velociraptor Sigma Exclusion Rules (Detection Suppression)
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-08 00:03 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. Prior to 0.1.77, the Velociraptor Sigma exclusion-management endpoints in `backend/app/incidents/routes/incident_alert.py` omit role and tenant authorization, and `POST /api/incidents/alerts/create/velo-sigma/exclusion` does not validate credentials. Its `return_username_for_logging` dependency in `backend/app/auth/utils.py` calls `decode_token`, which returns ordinary Invalid token or Expired signature strings on failure, and the dependency passes these strings through instead of rejecting the request. A Bearer header is required, but an arbitrary invalid, expired or forged value can create a suppression rule without a valid account. The collection GET at /create/velo-sigma/exclusion lists exclusions; the read, update and delete routes under `/create/velo-sigma/exclusion/{exclusion_id}`, and the `/velo-sigma/exclusion/{exclusion_id}/toggle` route, use `get_current_user` without role checks, permitting any authenticated `customer_user` to manage every exclusion. In `backend/app/incidents/services/velo_sigma.py`, `process_sigma_alert` calls `check_exclusions` and drops matching enabled alerts before incident creation. A null `customer_code` applies a rule across all tenants. Attackers can suppress detections platform-wide through channel, title or field matching, while low-privilege accounts can enumerate detection-tuning data and modify, disable or delete legitimate exclusions. This issue is fixed in version 0.1.77.
Description quoted from the CVE record (assigned by GitHub_M, published 2026-10-30).
Weakness: CWE-287: Improper Authentication; CWE-862: Missing Authorization
How it can be exploited
Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality none, integrity high, availability none. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA assessment (SSVC): CISA assesses that a public proof of concept exists. Automatable: yes. Technical impact: partial.
Public exploit evidence (Exploit Observer)
Exploit Observer found 3 code repositories naming this CVE.
Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.
See all 4 references on Exploit Observer
Live scores
- EPSS
- 0.004
low predicted chance of attack - VEDAS
- 0.985
strong exploit evidence - On CISA KEV
- Not listed
- Detection rule
- Suricata
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| socfortress CoPilot | version < 0.1.77 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
How to fix it
No fixed version or vendor advisory is listed in the CVE record yet. Watch the vendor’s security page.
How to detect it
Suricata rules (network detection)
1 rule that alert on traffic matching this exploit: VEDAS CVE-2026-61739 SOCFortress CoPilot - Velociraptor Sigma Exclusion Missing Authorization Attempt. Add them to your Suricata rule set and reload.
Show the rules
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-61739 SOCFortress CoPilot - Velociraptor Sigma Exclusion Missing Authorization Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/create/velo-sigma/exclusion"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2026-61739; reference:url,https://www.exploit.observer/?keyword=CVE-2026-61739&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=socfortress&match=exact; sid:1103204; rev:1;)
CVE-2026-61739.rules on GitHub
References
Other references
- https://github.com/socfortress/CoPilot/security/advisories/GHSA-c6jc-rh4j-wg88 (x_refsource_CONFIRM)
- https://github.com/socfortress/CoPilot/pull/942 (x_refsource_MISC)
- https://github.com/socfortress/CoPilot/commit/d22f80f9086ef5e68baa3a9414bff7d7621a14a8 (x_refsource_MISC)
- https://github.com/socfortress/CoPilot/tree/v0.1.77 (x_refsource_MISC)
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.
Supporting partners
