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CVE-2026-42507— Arbitrary inputs are included in errors without any escaping in net/textproto

AI Predicted 4.3 Difficulty: Trivial

Possible ATT&CK Techniques 1AI

T1562.001
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I. Basic Information for CVE-2026-42507

Vulnerability Information
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Vulnerability Title
Arbitrary inputs are included in errors without any escaping in net/textproto
Source: NVD (National Vulnerability Database)
Vulnerability 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 (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Go standard librarynet/textproto 0 ~ 1.25.11 -

II. Public POCs for CVE-2026-42507

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III. Intelligence Information for CVE-2026-42507

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Patches & Fixes for CVE-2026-42507 (1)

News Coverage for CVE-2026-42507 (1)

Vendor Pages for CVE-2026-42507 (1)

Other References for CVE-2026-42507 (1)

Same Patch Batch · Go standard library · 2026-06-02 · 3 CVEs total

CVE-2026-42504Quadratic complexity in WordDecoder.DecodeHeader in mime
CVE-2026-27145Inefficient candidate hostname parsing in crypto/x509

IV. Related Vulnerabilities

Same product: net/textproto
Same vendor: Go standard library

V. Comments for CVE-2026-42507

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