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CVE-2026-116566

socket.getaddrinfo() accepts embedded null bytes in host and port

CVSS 4.0 5.3 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 29 Oct 2026 19:28:49 UTC. Read the latest advisory.

cve-program · CVE-2026-116566

Published

socket.getaddrinfo() previously accepted null bytes within *host* and *port* parameters which can cause the values to be silently truncated.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-116566

Published

socket.getaddrinfo() accepts embedded null bytes in host and port

socket.getaddrinfo() previously accepted null bytes within *host* and *port* parameters which can cause the values to be silently truncated.

Source published
29 Oct 2026 17:45:47 UTC
Source modified
29 Oct 2026 17:47:23 UTC
Saved here
29 Oct 2026 19:28:49 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 5.3 CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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Sources read 15 Nov 13:16 UTC · 255 of 275 readable · 250 fully read · documentation 469/469 current

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