CVE-2026-56851

Panic parsing crafted input in x/text/secure/precis in golang.org/x/text

CVE-2026-56851 is fixed in golang-golang-x-text on 1 platform by DEBIAN-CVE-2026-56851 (version 0.41.0-1), released October 8, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.5

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0047

40th percentile

The Nickname profile can panic with an out-of-bounds slice error when transforming crafted input into a short destination buffer.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
golang-golang-x-text · Debian 14	0.41.0-1	DEBIAN-CVE-2026-56851	Oct 8, 2026

Details

Published
October 7, 2026
Weakness
Out-of-bounds Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56851

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