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    2 vulnerabilities found for lua-resty-dns by openresty

    CVE-2026-116013 (GCVE-0-2026-116013)

    Vulnerability from nvd – Published: 2026-10-24 11:40 – Updated: 2026-10-24 11:40
    VLAI
    Title
    OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing
    Summary
    OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in parse_section() and _decode_name() that fails to check resource record lengths against the received message. Attackers controlling or spoofing a queried nameserver can send truncated record headers or RDATA, raising uncaught Lua exceptions in resolver:query() that abort requests and break name resolution.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-130 - Improper Handling of Length Parameter Inconsistency
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 6774 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    openresty lua-resty-dns Affected: 0 , < 0.24 (custom)
    		Create a notification for this product.
    Date Public
    2026-10-23 08:26
    Credits
    Siyang Wu
    Show details on NVD website
    To clipboard 

    {
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    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "lua-resty-dns",
          "repo": "https://github.com/openresty/lua-resty-dns",
          "vendor": "openresty",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Siyang Wu"
        }
      ],
      "datePublic": "2026-10-23T08:26:37.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in parse_section() and _decode_name() that fails to check resource record lengths against the received message. Attackers controlling or spoofing a queried nameserver can send truncated record headers or RDATA, raising uncaught Lua exceptions in resolver:query() that abort requests and break name resolution."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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      "providerMetadata": {
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          "url": "https://github.com/openresty/lua-resty-dns/pull/83"
        },
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          "url": "https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758"
        },
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          "url": "https://github.com/openresty/lua-resty-dns/blob/v0.23/lib/resty/dns/resolver.lua#L396-L442"
        },
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          "tags": [
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          ],
          "url": "https://github.com/openresty/lua-resty-dns/tree/v0.24"
        },
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    }
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-116013",
    "datePublished": "2026-10-24T11:40:31.527Z",
    "dateReserved": "2026-10-24T11:23:54.934Z",
    "dateUpdated": "2026-10-24T11:40:31.527Z",
    "state": "PUBLISHED"
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    CVE-2026-116013 (GCVE-0-2026-116013)

    Vulnerability from cvelistv5 – Published: 2026-10-24 11:40 – Updated: 2026-10-24 11:40
    VLAI
    Title
    OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing
    Summary
    OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in parse_section() and _decode_name() that fails to check resource record lengths against the received message. Attackers controlling or spoofing a queried nameserver can send truncated record headers or RDATA, raising uncaught Lua exceptions in resolver:query() that abort requests and break name resolution.
    Severity
    6.3 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    3.7 (Low)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-130 - Improper Handling of Length Parameter Inconsistency
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 6774 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    openresty lua-resty-dns Affected: 0 , < 0.24 (custom)
    		Create a notification for this product.
    Date Public
    2026-10-23 08:26
    Credits
    Siyang Wu
    Show details on NVD website
    To clipboard 

    {
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        {
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          "repo": "https://github.com/openresty/lua-resty-dns",
          "vendor": "openresty",
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            {
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            }
          ]
        }
      ],
      "credits": [
        {
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          "value": "Siyang Wu"
        }
      ],
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        {
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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            "vulnIntegrityImpact": "NONE"
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      ],
      "providerMetadata": {
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          "url": "https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758"
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