Weakness (CWE)

CWE-1046: Creation of Immutable Text Using String Concatenation

Base Incomplete

The product creates an immutable text string using string concatenation operations.

Source: MITRE CWE-1046

All Critical High Medium Low Exploited only Public exploit

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High 7.5

CVE-2026-42499

Quadratic string concatenation in consumePhrase in net/mail

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

Go standard library net/mail go stdlib Debian Ubuntu Alpine Go

May 7, 2026