Vulnerability-Lookup

GHSA-WWFW-5CRG-94F6

Vulnerability from github – Published: 2026-10-17 21:31 – Updated: 2026-10-17 21:31

Details

Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a user enumeration vulnerability because userpassword.Compare() substitutes a placeholder hash derived from the string "hunter2" when a stored password hash is empty. Unauthenticated attackers can submit logins with the password "hunter2" and distinguish HTTP 403 from 401 responses to enumerate valid accounts and reveal the authentication provider of SSO-only users.

Severity

3.7 (Low)


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

6.3 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-111933"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-17T19:16:36Z",
    "severity": "MODERATE"
  },
  "details": "Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a user enumeration vulnerability because userpassword.Compare() substitutes a placeholder hash derived from the string \"hunter2\" when a stored password hash is empty. Unauthenticated attackers can submit logins with the password \"hunter2\" and distinguish HTTP 403 from 401 responses to enumerate valid accounts and reveal the authentication provider of SSO-only users.",
  "id": "GHSA-wwfw-5crg-94f6",
  "modified": "2026-10-17T21:31:20Z",
  "published": "2026-10-17T21:31:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/security/advisories/GHSA-8fxq-53rx-ph5f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111933"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/coder-before-2.34.2-user-enumeration-via-login-placeholder-hash"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/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-2026-111933 (GCVE-0-2026-111933)

Vulnerability from cvelistv5 – Published: 2026-10-17 18:46 – Updated: 2026-10-17 18:46

Title

Coder before 2.34.2 User Enumeration via Login Placeholder Hash

Summary

Severity

6.3 (Medium)


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

3.7 (Low)


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

CWE

CWE-203 - Observable Discrepancy

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6398 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/coder/coder/security/advisorie…	vendor-advisory
https://www.vulncheck.com/advisories/coder-before…	third-party-advisory

Impacted products

4 products

Vendor	Product	Version
coder	coder	Affected: 2.34.0 , < 2.34.2 (semver) Unaffected: 2.34.2 (semver)
coder	coder	Affected: 2.33.0 , < 2.33.8 (semver) Unaffected: 2.33.8 (semver)
coder	coder	Affected: 2.30.0 , < 2.32.7 (semver) Unaffected: 2.32.7 (semver)
coder	coder	Affected: 0 , < 2.29.17 (semver) Unaffected: 2.29.17 (semver)

Date Public

2026-06-12 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
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              "status": "affected",
              "version": "2.34.0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "2.34.2",
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            }
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              "status": "affected",
              "version": "2.30.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.32.7",
              "versionType": "semver"
            }
          ]
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          "vendor": "coder",
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "2.29.17",
              "versionType": "semver"
            }
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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        "shortName": "VulnCheck"
      },
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          ],
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        },
        {
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          ],
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        }
      ],
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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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