{"id":"EUVD-2026-73161","revision":"19212b6d9e7843b18c8a6510ed9e7f5d","records":[{"revision":"19212b6d9e7843b18c8a6510ed9e7f5d","observedAt":"2026-11-03T13:11:31.96+00:00","statement":{"source":"euvd","id":"EUVD-2026-73161","aliases":["CVE-2026-82533","GHSA-8m2g-8cgm-3vcp"],"title":"DeepSeek Harness before 0.1.2-alpha.1 contains an authentication bypass vulnerability that grants unauthenticated access to its local HTTP agent-control API by accepting a client-supplied loopback Host header in place of validating the actu…","description":"DeepSeek Harness before 0.1.2-alpha.1 contains an authentication bypass vulnerability that grants unauthenticated access to its local HTTP agent-control API by accepting a client-supplied loopback Host header in place of validating the actual TCP connection origin. On the default configuration, a confined tool-executed process can reach the loopback API without any port exposure and use it to escape its own OS sandbox, escalate to unconfined execution, and disable the approval prompt. When the port is externally reachable via tunnel, SSH forward, or reverse proxy, a remote attacker can exploit the same flaw to create sessions, execute arbitrary commands, and exfiltrate stored conversation transcripts without credentials.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.4,"severity":null}],"references":["https://www.ox.security/blog/cve-2026-82533-deepseek-harness-ai-agent-sandbox-escape/","https://github.com/deepseek-ai/deepseek-harness/releases/tag/dsh-v0.1.2-alpha.1","https://github.com/deepseek-ai/deepseek-harness/commit/3e24087bfaeabe40b58ba2f7b936895b8f93fe27","https://www.vulncheck.com/advisories/deepseek-harness-alpha-1-authentication-bypass-via-host-header-spoofing"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73161","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 8, 2026, 4:59:47 PM","dateUpdated":"Sep 10, 2026, 2:57:09 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-73161","identifiers":["EUVD-2026-73161","CVE-2026-82533","GHSA-8m2g-8cgm-3vcp"]},"retained":false,"historicalAffected":[]}],"coverage":[]}