Description
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.
Published: 2026-10-24
Score: 6.3 Medium
EPSS: n/a
KEV: No
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Remediation

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History

Sat, 24 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing
Weaknesses CWE-130
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.3, 'vector': '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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-24T11:40:31.527Z

Reserved: 2026-10-24T11:23:54.934Z

Link: CVE-2026-116013

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-24T12:16:57.437

Modified: 2026-10-24T12:16:57.437

Link: CVE-2026-116013

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-24T12:30:08Z

Weaknesses
  • CWE-130

    Improper Handling of Length Parameter Inconsistency