{"id":"CVE-2026-88939","title":"knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions","summary":"knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project direct…","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","cwe":["CWE-863"],"vendor":"knowns-dev","product":"knowns","affected":["knowns <= 0.33.0"],"published":"2026-09-10","updated":"2026-09-15","sourceUpdated":"2026-09-15T15:17:26.583","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88939","references":[{"url":"https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/guard.go#L104-L113","label":"disclosure@vulncheck.com"},{"url":"https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/registry.go#L51-L54","label":"disclosure@vulncheck.com"},{"url":"https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/knowns-through-0.33.0-authorization-bypass-via-project-set-bootstrap-exemption","label":"disclosure@vulncheck.com"},{"url":"https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-15T14:38:59.197126Z"},"epss":0.00268,"epssPercentile":0.19176,"ingestedAt":"2026-09-11T16:45:47.922Z","slug":"CVE-2026-88939","body":"## Overview\n\nknowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":58,"depthScoreParts":{"impact":45.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":203739,"id":"CVE-2026-88939","ts":1789486788138,"field":"exploit_available","old":"false","new":"true"}]}