{"id":"CVE-2025-49651","aliases":["EUVD-2025-17555","GHSA-h889-475r-wfmm","PYSEC-2026-1210"],"status":"published","title":"Missing Authorization for Interactive Sessions","description":"Missing 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.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00353,"percentile":0.29341,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2025-06-09T17:25:11Z","modified":"2026-07-07T17:57:28Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"backend-ai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"25.3.3"}]}]},{"source":"osv","ecosystem":"PyPI","package":"backend-ai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"25.3.3"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.1.0","1.2.0","1.3.0","1.4.0","18.12.0","19.3.0","19.3.0a1","19.9.0","20.3.0","20.3.1","20.9.0","20.9.0a1.dev0","21.3.0","22.3.0"]},{"source":"osv","ecosystem":"PyPI","package":"backend-ai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"25.3.3"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.1.0","1.2.0","1.3.0","1.4.0","18.12.0","19.3.0","19.3.0a1","19.9.0","20.3.0","20.3.1","20.9.0","20.9.0a1.dev0","21.3.0","22.3.0"]}],"products":[{"vendor":"lablup","product":"backendai"}],"references":[{"url":"https://hiddenlayer.com/sai_security_advisor/2025-06-backendai/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49651","tags":["advisory"]},{"url":"https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653","tags":["web"]},{"url":"https://hiddenlayer.com/sai_security_advisor/2025-06-backendai","tags":["web"]},{"url":"https://github.com/lablup/backend.ai/pull/7587","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h889-475r-wfmm","tags":["advisory"]},{"url":"https://github.com/lablup/backend.ai","tags":["package"]},{"url":"https://pypi.org/project/backend-ai","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-49651","title":"Missing Authorization for Interactive Sessions","description":"Missing 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.","status":"published","published":"2025-06-09T17:25:11.25Z","modified":"2025-06-11T12:12:00.783Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:32:24.825718Z"}],"euvd":[{"id":"EUVD-2025-17555","description":"Missing 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.","status":"published","published":"2025-06-09T17:25:11Z","modified":"2025-06-11T12:12:00Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:26.351797Z"}],"ghsa":[{"id":"GHSA-h889-475r-wfmm","title":"Backend.AI Missing Authorization vulnerability","description":"Missing 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.","status":"published","published":"2025-06-09T18:32:17Z","modified":"2026-01-21T14:46:29Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:39:18.564331Z"}],"nvd":[{"id":"CVE-2025-49651","description":"Missing 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.","status":"published","published":"2025-06-09T18:15:26.74Z","modified":"2026-06-17T09:31:35.69Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:11:11.4244Z"}],"osv":[{"id":"GHSA-h889-475r-wfmm","title":"Backend.AI Missing Authorization vulnerability","description":"Missing 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.","status":"published","published":"2025-06-09T18:32:17Z","modified":"2026-07-07T17:57:28.69690792Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:46:48.920784Z"},{"id":"PYSEC-2026-1210","title":"Backend.AI Missing Authorization vulnerability","description":"Missing 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.","status":"published","published":"2026-07-07T16:02:54.070366Z","modified":"2026-07-07T17:47:32.597742536Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:54.622769Z"}]}}