CVE-2026-86541: knowns before 0.30.0 Path Traversal via code.replace MCP action
knowns-dev · knowns
Fixed in 0.30.0 · Affected: knowns-dev before 0.30.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 56% of scored CVEs
DescriptionCVE.org
knowns versions before 0.30.0 contain a path traversal vulnerability in the handleCodeReplace() function that allows attackers to overwrite arbitrary files outside the project root. Attackers can supply absolute paths or relative paths containing directory traversal sequences to write malicious content to sensitive files like shell startup scripts or SSH configuration files.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- knowns-dev · knownsbefore 0.30.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- knowns-dev
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-86541 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.