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Fencer Intel
critical 9.4

CVE-2026-61729 json

SOCFortress CoPilot: Hardcoded Default Header Secret - Unauthenticated Active-Response Invocation and Alert Injection

published 4mo ago modified 6d ago also EUVD-2026-113994 , GHSA-x8gc-f8p4-frc2

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository socfortress/CoPilot. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
9.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. Prior to 0.1.76, `verify_graylog_header` in `backend/app/active_response/routes/graylog.py` and `verify_velociraptor_header` in `backend/app/incidents/routes/incident_alert.py` authenticate webhooks against `GRAYLOG_API_HEADER_VALUE` and `VELOCIRAPTOR_API_HEADER_VALUE` with the same publicly hardcoded fallback. The same default is shipped in `.env.example`. Deployments that leave either setting unset or unchanged permit an anonymous caller with the known header value to bypass the JWT authentication required by normal APIs. `POST /api/graylog/invoke` forwards attacker-selected `COMMAND`, `ACTION`, `VALUE` and `AGENT_ID` to the configured Wazuh manager without the command-enum validation of the authenticated invocation route, allowing active-response scripts to disrupt endpoints and manipulate defensive controls. `POST /api/incidents/alerts/create/threshold` and `POST /api/incidents/alerts/create/velo-sigma` accept forged alerts for arbitrary `customer_code` values and drive attacker-controlled OpenSearch queries. Active-response delivery requires a configured reachable Wazuh manager. Deployments with independently changed header secrets are not subject to this default-secret bypass. This issue is fixed in version 0.1.76.

Patch / fix

Is CVE-2026-61729 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
6d ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/socfortress/CoPilot/security/advisories/GHSA-x8gc-f8p4-frc2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Affected products

  • socfortress CoPilot

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of socfortress/CoPilot published their own advisory on GitHub. Reviewed sources take precedence over it.