CVE-2026-86544
Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
07/09/2026
Last modified:
07/09/2026
Description
knowns versions before 0.30.0 contain an authorization bypass vulnerability where mutating code actions are incorrectly classified as read-only operations. Attackers with read-restricted sessions can exploit code.replace to modify permission configurations and escalate privileges on subsequent calls.
Impact
Base Score 4.0
7.20
Severity 4.0
HIGH
Base Score 3.x
8.10
Severity 3.x
HIGH
References to Advisories, Solutions, and Tools
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/guard.go#L44-L60
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/registry.go#L99-L140
- https://github.com/knowns-dev/knowns/commit/a2c98fc5c313463576c9348beeec6a74ddd7333b
- https://github.com/knowns-dev/knowns/releases/tag/v0.30.0
- https://github.com/knowns-dev/knowns/security/advisories/GHSA-w323-3wpx-f7g5
- https://www.vulncheck.com/advisories/knowns-before-0.30.0-authorization-bypass-via-misclassified-code-actions


