Vulnerability-Lookup

CVE-2026-75481 (GCVE-0-2026-75481)

Vulnerability from cvelistv5 – Published: 2026-08-17 20:36 – Updated: 2026-08-18 15:35

Title

SkyPilot Authentication Bypass via Service Account Role Escalation

Summary

SkyPilot fails to validate that authenticated users are entitled to grant administrator roles when updating service account permissions. Attackers can create a service account, escalate it to administrator role, and authenticate with its bearer token to gain administrative control over all users and workspaces.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 15:35 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://github.com/skypilot-org/skypilot/issues/9846	issue-tracking
https://github.com/skypilot-org/skypilot	product
https://github.com/skypilot-org/skypilot/commit/8…	patch
https://github.com/skypilot-org/skypilot/blob/mas…	technical-description
https://www.vulncheck.com/advisories/skypilot-aut…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
skypilot-org	skypilot	Affected: 0 , ≤ 0.13.1rc1 (custom)	guessed

Date Public

2026-06-12 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-75481

Vulnerability from fkie_nvd - Published: 2026-08-17 21:16 - Updated: 2026-08-18 16:18

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/skypilot-org/skypilot
	disclosure@vulncheck.com	https://github.com/skypilot-org/skypilot/blob/master/sky/users/server.py
	disclosure@vulncheck.com	https://github.com/skypilot-org/skypilot/commit/8a3e00259cd374e662cd876c037164bcb070f78e
	disclosure@vulncheck.com	https://github.com/skypilot-org/skypilot/issues/9846
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/skypilot-authentication-bypass-via-service-account-role-escalation
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/skypilot-org/skypilot/issues/9846

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-9FGC-W437-4H52

Vulnerability from github – Published: 2026-08-17 21:31 – Updated: 2026-08-17 21:31

Details

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-75481"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-17T21:16:50Z",
    "severity": "HIGH"
  },
  "details": "SkyPilot fails to validate that authenticated users are entitled to grant administrator roles when updating service account permissions. Attackers can create a service account, escalate it to administrator role, and authenticate with its bearer token to gain administrative control over all users and workspaces.",
  "id": "GHSA-9fgc-w437-4h52",
  "modified": "2026-08-17T21:31:27Z",
  "published": "2026-08-17T21:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75481"
    },
    {
      "type": "WEB",
      "url": "https://github.com/skypilot-org/skypilot/issues/9846"
    },
    {
      "type": "WEB",
      "url": "https://github.com/skypilot-org/skypilot/commit/8a3e00259cd374e662cd876c037164bcb070f78e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/skypilot-org/skypilot"
    },
    {
      "type": "WEB",
      "url": "https://github.com/skypilot-org/skypilot/blob/master/sky/users/server.py"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/skypilot-authentication-bypass-via-service-account-role-escalation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-75481 (GCVE-0-2026-75481)

FKIE_CVE-2026-75481

GHSA-9FGC-W437-4H52

Tags

Sightings

Nomenclature