CVE-2026-42507

Aliases:GO-2026-5039BIT-golang-2026-42507
Advisory lineage Upstream: 0 Downstream: 23
Awaiting Analysis
Published: 02 Jun 2026, 22:01
Last modified:03 Jun 2026, 19:04

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
0.37% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Jun 2026, 22:01
Published
Vulnerability first disclosed
03 Jun 2026, 19:04
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Trends

Current EPSS score: 0.37%• Percentile: 29%

Affected Systems

  • go standard library•net/textproto

    < 1.25.11 | ≥ 1.26.0-0, < 1.26.4

  • Go•stdlib

    ≥ 1.26.0-0, < 1.26.4

References (4)