CVE-2026-58042
A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records. Repeated triggering of this condition can lead to denial of service.
nodejs nodeRuntimes & languagesCVSS
5.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
- 4 Aug 2026, 00:49 UTCPublishedCVE List
- 23 Oct 2026, 23:45 UTCExploit code publicGitHub proof-of-concept repositories
Reports 1
1 outlet mention it. Reports are not confirmation; each links to its source.
Description
A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records.
Repeated triggering of this condition can lead to denial of service.
This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Text from CVE List
Affected versions 3
- nodeaffected: 26.5.0 through 26.5.0CVE List
- nodeaffected: 24.18.0 through 24.18.0CVE List
- nodeaffected: 22.23.1 through 22.23.1CVE List