CVE-2026-86544 knowns before 0.30.0 Authorization Bypass via Misclassified Code Actions
Attackers with read access can modify permissions via misclassified code actions, leading to privilege escalation in the knowns library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86544?
CVE-2026-86544 is a high-severity authentication bypass vulnerability in knowns-dev knowns, published on 7 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2026-86544?
How do I fix CVE-2026-86544?
No fix has been published for CVE-2026-86544 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-86544 being exploited?
There is no known exploitation of CVE-2026-86544 in the wild and no public exploit code.
Sources
Also known as GHSA-q52j-357p-5pv8, GHSA-w323-3wpx-f7g5.