SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-42507

This might allow an attacker to inject misleading content to errors that are printed or logged.

MEDIUM 5.3EPSS 0.37%

Does this matter?

Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.

Description

When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
0.37% probability · 30th percentile
CISA KEV
Not listed
Source
security@golang.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.