GHSA-w47m-jpv2-qfw5CriticalCVSS 9.8
knowns versions before 0.31.0 fail to properly validate the x-opencode-directory request header...
🔗 CVE IDs covered (1)
📋 Description
knowns versions before 0.31.0 fail to properly validate the x-opencode-directory request header in the /api/opencode proxy endpoint. Remote attackers can supply arbitrary directory paths to execute file operations outside the project root on the host system.
🔗 References (7)
- https://github.com/knowns-dev/knowns/security/advisories/GHSA-9h2q-r9fh-f98w
- https://nvd.nist.gov/vuln/detail/CVE-2026-88899
- https://github.com/knowns-dev/knowns/commit/37db0561b37b48b8bd035a417d7f1da6258ae657
- https://github.com/knowns-dev/knowns/blob/v0.30.0/internal/server/server.go#L1283-L1296
- https://github.com/knowns-dev/knowns/releases/tag/v0.31.0
- https://www.vulncheck.com/advisories/knowns-before-0.31.0-external-control-of-agent-working-directory-via-x-opencode-directory-header
- https://github.com/advisories/GHSA-w47m-jpv2-qfw5