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

HIGH 7.5CVE-2026-56851 · GO-2026-6629 · Published 07/10/2026 · updated 08/10/2026

In short

CVE-2026-56851 is a HIGH (CVSS 7.5) vulnerability affecting golang.org/x/text.
Chance of exploitation in the next 30 days (EPSS): 0.47%, higher than 40.3% of all vulnerabilities.
Fix: update to 0.41.0 or later.

Package	Affected versions	Patched versions
golang.org/x/text Go	`< 0.41.0`	`0.41.0`

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

NVD description

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

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Package

Affected versions

Patched versions

< 0.41.0

0.41.0

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