{"id":"CVE-2025-49651","aliases":["GHSA-h889-475r-wfmm","PYSEC-2026-1210"],"title":"Backend.AI Missing Authorization vulnerability","summary":"Backend.AI Missing Authorization vulnerability","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"backend-ai","product":"backend-ai","ecosystem":"pip","affected":["backend-ai <= 25.3.3"],"published":"2025-06-09","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-h889-475r-wfmm","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49651"},{"url":"https://github.com/lablup/backend.ai/pull/7587"},{"url":"https://github.com/lablup/backend.ai"},{"url":"https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653"},{"url":"https://hiddenlayer.com/sai_security_advisor/2025-06-backendai"}],"tags":["osv","pip"],"epss":0.00338,"epssPercentile":0.27355,"ingestedAt":"2026-07-08T18:25:50.018Z","slug":"CVE-2025-49651","body":"## Overview\n\nMissing Authorization in Lablup's BackendAI allows attackers to takeover all active sessions; Accessing, stealing, or altering any data accessible in the session. This vulnerability exists in all current versions of BackendAI.\n\nNOTE: The maintainers of BackendAI do not consider this report to fit with their threat model and advise users to follow security advice from https://github.com/lablup/backend.ai/pull/7587 in their instances to protect themselves from the conditions that would lead to the situation described in the CVE record.\n\n## Affected packages\n\n- `backend-ai <= 25.3.3`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}