CVE-2026-42507

5.3 MEDIUM

When returning errors, functions in the net/textproto package would include its input as part of the error

Published: 2026-06-02 · Last updated: 2026-06-04

Severity and scoring

CVSS: 5.3 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-42507
[Other]https://go.dev/cl/777060
[Other]https://go.dev/issue/79346
[Other]https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw
[Other]https://pkg.go.dev/vuln/GO-2026-5039