CVE-2026-61729

CRITICAL CVSS 9.4 PoC Available
Published: 2026-10-30
Modified: 2026-10-30
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AI Threat Summary

CVE-2026-61729 is a critical vulnerability with a CVSS score of 9.4 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.

Description

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.

Attack Chain
1
Reconnaissance

Attacker scans for vulnerable versions using version banners or PoC scanners

2
Initial Access

Attacker triggers CVE-2026-61729 vulnerability with a crafted request or payload

3
Execution

Vulnerability exploited to perform unauthorized actions on the target system

4
Impact

Depending on vulnerability type, attacker achieves data access, service disruption, or code execution

MITRE ATT&CK Techniques
T1190 Exploit Public-Facing Application
Initial Access

Public-facing application vulnerability exploited for initial access

T1203 Exploitation for Client Execution
Execution

Vulnerability exploited to execute attacker-controlled code

Indicators of Compromise
Type Value Description
user_agent Mozilla/5.0 (compatible; exploit/1.0) Generic exploit scanner user agent pattern
url /api/vuln-endpoint?payload=<malicious> Exploit attempt against application endpoint — monitor access logs for anomalous params
Remediation
1. Apply vendor-supplied security patches immediately. 2. If patches are unavailable, apply recommended mitigations from the vendor advisory. 3. Enable WAF rules or IDS signatures to detect exploitation attempts. 4. Monitor logs for indicators of compromise listed above. 5. Implement network segmentation to limit blast radius if exploitation occurs. 6. Subscribe to vendor security advisories for this product.
Quick Facts
CVE ID CVE-2026-61729
CVSS Score 9.4
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Published 2026-10-30
Exploited No
CISA KEV No
PoC Available
References
External Resources
NVD Entry BleepingComputer The Hacker News