Vulnerability-Lookup

GHSA-Q5CF-73CV-R7F2

Vulnerability from github – Published: 2026-07-15 12:32 – Updated: 2026-07-15 12:32

Details

Capgo (Cap-go/capgo) before 12.128.2 contains an information disclosure vulnerability in the Supabase PostgREST SECURITY DEFINER RPC function public.rescind_invitation that allows unauthenticated attackers to enumerate organization existence. The function returns distinct error messages (NO_ORG vs NO_RIGHTS) when called with only a publishable API key, enabling attackers to discover valid organization IDs and increase the attack surface for targeted phishing or social engineering campaigns.

Severity

7.5 (High)


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

8.7 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-56339"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-15T12:18:02Z",
    "severity": "HIGH"
  },
  "details": "Capgo (Cap-go/capgo) before 12.128.2 contains an information disclosure vulnerability in the Supabase PostgREST SECURITY DEFINER RPC function public.rescind_invitation that allows unauthenticated attackers to enumerate organization existence. The function returns distinct error messages (NO_ORG vs NO_RIGHTS) when called with only a publishable API key, enabling attackers to discover valid organization IDs and increase the attack surface for targeted phishing or social engineering campaigns.",
  "id": "GHSA-q5cf-73cv-r7f2",
  "modified": "2026-07-15T12:32:02Z",
  "published": "2026-07-15T12:32:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-8432-3cgm-vw5j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56339"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/capgo-unauthenticated-organization-existence-enumeration-via-rescind-invitation-rpc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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"
    }
  ]
}

CVE-2026-56339 (GCVE-0-2026-56339)

Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-15 18:38

Title

Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC

Summary

Severity

8.7 (High)


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

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-203 - Observable Discrepancy

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/Cap-go/capgo/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/capgo-unauth…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Cap-go	capgo	Affected: 0 , < 12.128.2 (semver) Unaffected: 12.128.2 (semver)

Date Public

2026-03-17 00:00

Credits

Judel777

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-56339",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-15T18:34:49.703597Z",
                "version": "2.0.3"
              },
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            }
          }
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        "providerMetadata": {
          "dateUpdated": "2026-07-15T18:38:40.103Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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            "url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-8432-3cgm-vw5j"
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        ],
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    ],
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            },
            {
              "status": "unaffected",
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            }
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        }
      ],
      "credits": [
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          "type": "reporter",
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "baseSeverity": "HIGH",
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            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
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            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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      },
      "references": [
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          "name": "GitHub Security Advisory (GHSA-8432-3cgm-vw5j)",
          "tags": [
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          ],
          "url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-8432-3cgm-vw5j"
        },
        {
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/capgo-unauthenticated-organization-existence-enumeration-via-rescind-invitation-rpc"
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    "datePublished": "2026-07-15T11:25:27.297Z",
    "dateReserved": "2026-06-20T13:13:56.012Z",
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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.

Action not permitted

GHSA-Q5CF-73CV-R7F2

CVE-2026-56339 (GCVE-0-2026-56339)

Tags

Sightings

Nomenclature