Bug 2519645 (CVE-2026-76594)

Summary: CVE-2026-76594 advisor-backend: advisor-backend: Unauthenticated /private/import_content/ endpoint allows global rule-catalogue overwrite
Product: [Other] Security Response Reporter: Christopher Lusk <clusk>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: kaycoth, security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in advisor-backend. A network-adjacent unauthenticated attacker could exploit a vulnerability in the `/private/import_content/` endpoint, which lacks proper authentication and permission checks. This allows the attacker to overwrite the global Advisor rule, resolution, and playbook catalogue. When combined with another vulnerability involving unsafe YAML deserialization, this could lead to arbitrary code execution on affected systems.
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Description Christopher Lusk 2026-08-19 14:33:18 UTC
HASH(0x558733838db0)