CVE-2026-42507
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Textproto Package Error Message Injection Vulnerability

Vulnerability report for CVE-2026-42507, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-06-02

Last updated on: 2026-06-03

Assigner: Go Project

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.

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Meta Information

Published
2026-06-02
Last Modified
2026-06-03
Generated
2026-07-14
AI Q&A
2026-06-03
EPSS Evaluated
2026-07-12
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability occurs in the net/textproto package where functions return errors that include the input data as part of the error message.

Because the input is included in the error, an attacker might be able to inject misleading or malicious content into these error messages that are printed or logged.

Impact Analysis

The vulnerability can allow an attacker to inject misleading content into error messages that are printed or logged.

This could cause confusion or misinterpretation of logs or error outputs, potentially hiding real issues or causing incorrect responses based on the misleading information.

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