Vulnerability-Lookup

CVE-2026-91924 (GCVE-0-2026-91924)

Vulnerability from cvelistv5 – Published: 2026-09-15 11:00 – Updated: 2026-09-17 14:22

Title

pgweb through 0.17.0 Missing Authorization on Direct Connect Endpoint

Summary

pgweb through 0.17.0 leaves the POST /api/connect endpoint unguarded when connect-backend authorization is configured, allowing attackers to supply arbitrary database connection strings. Attackers can bypass the resource-to-database mapping by providing a custom session identifier and connection URL to access unauthorized databases and internal services.

Severity

8.4 (High)


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

8.5 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 14:21 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://github.com/sosedoff/pgweb/issues/869	issue-tracking
https://github.com/sosedoff/pgweb	product
https://github.com/sosedoff/pgweb/blob/6b0b0244d1…	technical-description
https://github.com/sosedoff/pgweb/blob/6b0b0244d1…	technical-description
https://www.vulncheck.com/advisories/pgweb-throug…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
sosedoff	pgweb	Affected: 0 , ≤ 0.17.0 (semver)	guessed

Date Public

2026-08-04 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-91924

Vulnerability from fkie_nvd - Published: 2026-09-15 11:17 - Updated: 2026-09-17 15:16

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/sosedoff/pgweb
	disclosure@vulncheck.com	https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/api.go
	disclosure@vulncheck.com	https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/routes.go
	disclosure@vulncheck.com	https://github.com/sosedoff/pgweb/issues/869
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/pgweb-through-0.17.0-missing-authorization-on-direct-connect-endpoint
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/sosedoff/pgweb/issues/869

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/sosedoff/pgweb/issues/869"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-QP8H-C7QP-M297

Vulnerability from github – Published: 2026-09-15 12:31 – Updated: 2026-09-15 12:31

Details

Severity

8.5 (High)


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

8.4 (High)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-91924"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-15T11:17:13Z",
    "severity": "HIGH"
  },
  "details": "pgweb through 0.17.0 leaves the POST /api/connect endpoint unguarded when connect-backend authorization is configured, allowing attackers to supply arbitrary database connection strings. Attackers can bypass the resource-to-database mapping by providing a custom session identifier and connection URL to access unauthorized databases and internal services.",
  "id": "GHSA-qp8h-c7qp-m297",
  "modified": "2026-09-15T12:31:47Z",
  "published": "2026-09-15T12:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91924"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sosedoff/pgweb/issues/869"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sosedoff/pgweb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/api.go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/routes.go"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/pgweb-through-0.17.0-missing-authorization-on-direct-connect-endpoint"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/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

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-91924 (GCVE-0-2026-91924)

FKIE_CVE-2026-91924

GHSA-QP8H-C7QP-M297

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