Vulnerability-Lookup

GHSA-87FC-9C43-8Q4G

Vulnerability from github – Published: 2026-07-24 15:33 – Updated: 2026-07-24 15:33

Details

lakeFS through 1.83.0, fixed in commit 71a45ee, contains an authentication bypass vulnerability in the /setup_comm_prefs endpoint that allows unauthenticated attackers to overwrite operator metadata including email, name, and company after setup completion. Attackers can POST to this endpoint to modify security update preferences, disable security communications, and trigger falsified telemetry events using the legitimate installation ID.

Severity

5.3 (Medium)


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

6.9 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-66006"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T15:19:07Z",
    "severity": "MODERATE"
  },
  "details": "lakeFS through 1.83.0, fixed in commit 71a45ee, contains an authentication bypass vulnerability in the /setup_comm_prefs endpoint that allows unauthenticated attackers to overwrite operator metadata including email, name, and company after setup completion. Attackers can POST to this endpoint to modify security update preferences, disable security communications, and trigger falsified telemetry events using the legitimate installation ID.",
  "id": "GHSA-87fc-9c43-8q4g",
  "modified": "2026-07-24T15:33:03Z",
  "published": "2026-07-24T15:33:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66006"
    },
    {
      "type": "WEB",
      "url": "https://github.com/treeverse/lakeFS/issues/10465"
    },
    {
      "type": "WEB",
      "url": "https://github.com/treeverse/lakeFS/pull/10499"
    },
    {
      "type": "WEB",
      "url": "https://github.com/treeverse/lakeFS/commit/71a45eeb1639d146d34b8effd7e86d077160ed7c"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/lakefs-unauthenticated-operator-metadata-overwrite-via-setup-comm-prefs"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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-2026-66006 (GCVE-0-2026-66006)

Vulnerability from cvelistv5 – Published: 2026-07-24 14:57 – Updated: 2026-07-24 15:30 X_Open Source

Title

lakeFS Unauthenticated Operator Metadata Overwrite via setup_comm_prefs

Summary

Severity

6.9 (Medium)


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

5.3 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/treeverse/lakeFS/issues/10465	technical-descriptionexploit
https://github.com/treeverse/lakeFS/pull/10499	issue-tracking
https://github.com/treeverse/lakeFS/commit/71a45e…	patch
https://www.vulncheck.com/advisories/lakefs-unaut…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
treeverse	lakeFS	Affected: 0 , ≤ 1.83.0 (semver) Unaffected: 71a45eeb1639d146d34b8effd7e86d077160ed7c (git)

Date Public

2026-06-24 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-66006",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-24T15:30:44.937431Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-24T15:30:51.922Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/github.com/treeverse/lakefs",
          "product": "lakeFS",
          "repo": "https://github.com/treeverse/lakeFS",
          "vendor": "treeverse",
          "versions": [
            {
              "lessThanOrEqual": "1.83.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
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              "version": "71a45eeb1639d146d34b8effd7e86d077160ed7c",
              "versionType": "git"
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          "type": "finder",
          "value": "George Chen"
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      "descriptions": [
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          "lang": "en",
          "value": "lakeFS through 1.83.0, fixed in commit 71a45ee, contains an authentication bypass vulnerability in the /setup_comm_prefs endpoint that allows unauthenticated attackers to overwrite operator metadata including email, name, and company after setup completion. Attackers can POST to this endpoint to modify security update preferences, disable security communications, and trigger falsified telemetry events using the legitimate installation ID."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
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            "providerUrgency": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
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      "references": [
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          "name": "Researcher Disclosure",
          "tags": [
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          "url": "https://github.com/treeverse/lakeFS/issues/10465"
        },
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          "name": "Pull Request",
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          "url": "https://github.com/treeverse/lakeFS/pull/10499"
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        {
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      "tags": [
        "x_open-source"
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      "title": "lakeFS Unauthenticated Operator Metadata Overwrite via setup_comm_prefs",
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    "datePublished": "2026-07-24T14:57:50.268Z",
    "dateReserved": "2026-07-23T19:22:30.643Z",
    "dateUpdated": "2026-07-24T15:30:51.922Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-87FC-9C43-8Q4G

CVE-2026-66006 (GCVE-0-2026-66006)

Tags

Sightings

Nomenclature