GHSA-HFPQ-X728-986J

Vulnerability from github – Published: 2026-04-07 20:13 – Updated: 2026-04-24 13:44
VLAI?
Summary
netavark has incorrect error handling for malformed tcp packets
Details

Impact

A truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU.

Patches

https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1

Workarounds

None

Credits

Thanks to @dkane01 for reporting this

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.17.0"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "netavark"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.16.0"
            },
            {
              "fixed": "1.17.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35406"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-07T20:13:04Z",
    "nvd_published_at": "2026-04-07T22:16:23Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU.\n\n### Patches\nhttps://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1\n\n### Workarounds\nNone\n\n### Credits\n\nThanks to @dkane01 for reporting this",
  "id": "GHSA-hfpq-x728-986j",
  "modified": "2026-04-24T13:44:30Z",
  "published": "2026-04-07T20:13:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35406"
    },
    {
      "type": "WEB",
      "url": "https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/containers/aardvark-dns"
    },
    {
      "type": "WEB",
      "url": "https://github.com/containers/aardvark-dns/releases/tag/v1.17.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "netavark has incorrect error handling for malformed tcp packets"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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