CVE-2026-74766

Net::IDN::Punycode versions from 2.301 before 2.590 for Perl allow a heap use-after-free via a decoded code point that reallocates the output buffer in decode_punycode

CVSS score

8.4

EPSS probability

%0.1

Risk score

0.0

Published

27 d ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Vulnerability Timeline (Change History)

CVE-2026-74766 historical changes made to the vulnerability by NVD, CISA and MITRE:

Date	Actor / Source	Action / Description	Type	Previous value	New value
22.09.2026	nvd@nist.gov	Initial Analysis & CVSS Vector Assignment	CVSS V3.1	—	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
22.09.2026	CISA Coordinator	SSVC Risk Re-assessment	SSVC / KEV	exploitation: none	exploitation: none
22.09.2026	MITRE / NVD	New CVE Record Received & Ingested	CVE Created	—	CVE-2026-74766

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Net::IDN::Punycode versions from 2.301 before 2.590 for Perl allow a heap use-after-free via a decoded code point that reallocates the output buffer in decode_punycode

Vulnerability Timeline (Change History)

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