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5.3 Medium

CVE-2026-42507 When returning errors, functions in the net/textproto package would include its input as part of the error

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.

Affected products and versions

Product Affected versions Fixed in
net/textproto 1.26 1.26.0-0 → < 1.26.4 1.26.4
net/textproto 1.25 earliest → < 1.25.11 1.25.11

References

Timeline

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The 6 CVEs of net/textproto →
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