Arbitrary inputs are included in errors without any escaping in net/textproto (Go standard library net/textproto)

CVE-2026-42507
MEDIUM 5.3

At a glance

Source
NVD
EPSS
EPSS 0.37 % · percentile 31 ()
State
PUBLISHED
Published
Updated
Assigner
Go
NVD status
Awaiting Analysis

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NCISA-ADP
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Advisories

European references

CERT-FR advisories

Affected products

ProductVersions
Go standard library · net/textprotoaffected 0 < 1.25.11 ; affected 1.26.0-0 < 1.26.4

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD