CVE-2026-86544
knowns before 0.30.0 Authorization Bypass via Misclassified Code Actions
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | knowns-dev |
| Product | knowns |
| Published | Sep 7, 2026 |
| Last Updated | Sep 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
knowns-dev / knowns
0 < 0.30.0
References
github.com: https://github.com/knowns-dev/knowns/security/advisories/GHSA-w323-3wpx-f7g5 github.com: https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/registry.go#L99-L140 github.com: https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/permissions/guard.go#L44-L60 github.com: https://github.com/knowns-dev/knowns/commit/a2c98fc5c313463576c9348beeec6a74ddd7333b github.com: https://github.com/knowns-dev/knowns/releases/tag/v0.30.0 vulncheck.com: https://www.vulncheck.com/advisories/knowns-before-0.30.0-authorization-bypass-via-misclassified-code-actions
Credits
🔍 Tong Hoang Gia (uziii2208) 🔍 Nguyen Huy Hoang (hoanggxyuuki)