{"schema":"threatline.record/2","record":{"id":"CVE-2026-110628","aliases":["GHSA-qrx8-9hc6-jvqg"],"summary":"Kan 0.5.5 through 0.6.0 Unauthenticated SSRF via /api/download/attatchment","details":"Kan 0.5.5 through 0.6.0 contains an unauthenticated server-side request forgery vulnerability in the /api/download/attatchment route due to an incomplete fix for CVE-2026-32255. When S3_ENDPOINT is unset, attackers can pass arbitrary url query parameters to fetch() to read internal services, localhost ports, and cloud instance metadata.","categories":["Unclassified"],"product":"kan","vendor":"kanbn","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110628","source_modified_at":"2026-10-16T17:16:01.554Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"kan","vendor":"kanbn","versions":[{"version":"0.5.5","lessThanOrEqual":"0.6.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.2,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00425,"percentile":0.35738,"score_date":"2026-10-23"},"published_at":"2026-10-14T14:17:03.232Z","modified_at":"2026-10-16T17:16:01.554Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110628","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T17:16:01.554Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110628","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@leediay/HyIxU63ofg","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/kanbn/kan/pull/590","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/kanbn/kan/blob/v0.6.0/apps/web/src/pages/api/download/attatchment.ts#L21-L52","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/kanbn/kan/blob/v0.6.0/.env.example#L25-L27","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/kanbn/kan/security/advisories/GHSA-qrx8-9hc6-jvqg","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/kanbn/kan/commit/53397d8e81dc1494d94132848c1f0416f1152bd7","tags":["patch"]},{"source":"CVE List","url":"https://github.com/kanbn/kan","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/kan-0.5.5-through-0.6.0-unauthenticated-ssrf-via-api-download-attatchment","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-16T16:46:50.369655Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-16T17:16:01.554Z","content_hash":"cebba3e467ceb8670b901137d63098200d5d47d95fa302207ffe0c50fc9ded9a"}}