{"id":"CVE-2026-40525","aliases":["GHSA-jgq2-vq69-gr6h","PYSEC-2026-438"],"url":"https://o3.security/vulnerability/CVE-2026-40525","summary":"OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI","details":"OpenViking prior to version 0.3.9 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the authentication check fails open when the api_key configuration value is unset or empty. Remote attackers with network access to the exposed service can invoke privileged bot-control functionality without providing a valid X-API-Key header, including submitting attacker-controlled prompts, creating or using bot sessions, and accessing downstream tools, integrations, secrets, or data accessible to the bot.","published":"2026-04-17T18:19:12.315Z","modified":"2026-08-12T03:51:41.059639836Z","cvss":null,"epss":{"score":0.00571,"percentile":0.44309,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"openviking","fixedVersion":"0.3.9"}],"fix":{"url":"https://github.com/volcengine/OpenViking/commit/c7bb1676f4d037609f041bf39e4e2bd52e8f9820","label":"volcengine/OpenViking@c7bb167"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40525.json"},{"type":"ADVISORY","url":"https://github.com/volcengine/OpenViking/releases/tag/v0.3.9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40525"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openviking-authentication-bypass-via-vikingbot-openapi"},{"type":"REPORT","url":"https://github.com/volcengine/OpenViking/pull/1447"},{"type":"FIX","url":"https://github.com/volcengine/OpenViking/commit/c7bb1676f4d037609f041bf39e4e2bd52e8f9820"},{"type":"PACKAGE","url":"https://github.com/volcengine/OpenViking"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:41.059639836Z"}}