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Vulnerability from cleanstart
Published
2026-09-08 02:00
Modified
2026-09-07 06:18
Summary
Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection
Details

Multiple security vulnerabilities affect the git-lfs package. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. See references for individual vulnerability details.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "git-lfs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.7.1-r3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Multiple security vulnerabilities affect the git-lfs package. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-XC26421",
  "modified": "2026-09-07T06:18:58Z",
  "published": "2026-09-08T02:00:36.061682Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-XC26421.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2021-38561"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2022-27191"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-46600"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56855"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-78662"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38561"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27191"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46600"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56855"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78662"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection",
  "upstream": [
    "CVE-2021-38561",
    "CVE-2022-27191",
    "CVE-2026-46600",
    "CVE-2026-56855",
    "CVE-2026-78662"
  ]
}



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