PYSEC-2026-1210

Vulnerability from pysec - Published: 2026-07-07 16:02 - Updated: 2026-07-07 17:23
VLAI
Details

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.

NOTE: 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.

Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impacted products
Name purl
backend-ai pkg:pypi/backend-ai
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "backend-ai",
        "purl": "pkg:pypi/backend-ai"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "25.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49651",
    "GHSA-h889-475r-wfmm"
  ],
  "details": "Missing Authorization in Lablup\u0027s 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.",
  "id": "PYSEC-2026-1210",
  "modified": "2026-07-07T17:23:49.126849Z",
  "published": "2026-07-07T16:02:54.070366Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49651"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lablup/backend.ai/pull/7587"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lablup/backend.ai"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653"
    },
    {
      "type": "WEB",
      "url": "https://hiddenlayer.com/sai_security_advisor/2025-06-backendai"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/backend-ai"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-h889-475r-wfmm"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Backend.AI Missing Authorization vulnerability"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.