CVE-2026-86544: Incorrect Authorization in knowns-dev knowns
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.
CVSS v4.0
Score 7.2high
Affected software
knowns-dev
knowns
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86544 affects knowns-dev's knowns software versions prior to 0.30.0. The vulnerability arises because certain mutating code actions are mistakenly classified as read-only operations. As a result, attackers who have sessions restricted to read-only access can exploit the code.replace function to alter permission configurations. This leads to privilege escalation on subsequent calls, allowing unauthorized actions beyond the original read-only scope.
Potential Impact
Attackers with read-restricted sessions can bypass authorization controls to modify permission configurations, resulting in privilege escalation. This undermines the intended access restrictions and potentially allows unauthorized code execution or configuration changes.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users and monitor for suspicious use of code.replace or permission changes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-07T22:18:53.568Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9f43bfacd9273b497857e0
Added to database: 09/07/2026, 23:07:43 UTC
Last enriched: 09/25/2026, 02:48:37 UTC
Last updated: 10/22/2026, 01:15:26 UTC
Views: 85
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.