CVE-2026-86544
knowns before 0.30.0 Authorization Bypass via Misclassified Code Actions
- State
- Published
- Severity
- 7.2 High
- Published
- Sep 7, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 7, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.2 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
knownsknowns-dev |
|
References
- GitHub Security Advisory (GHSA-w323-3wpx-f7g5)vendor-advisory
- ActionRegistry omits the mutating code actions; ClassifyAction falls back to CapRead (v0.29.1)technical-description
- Guard middleware gates on that classification (v0.29.1)technical-description
- knowns fix commit a2c98fc5c313patch
- knowns v0.30.0 Release Notesrelease-notes
- VulnCheck Advisory: knowns before 0.30.0 Authorization Bypass via Misclassified Code Actionsthird-party-advisory
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