CVE-2025-1795

Mishandling of comma during folding and unicode-encoding of email headers

En bref

Sévérité
LOW 2.3
EPSS
EPSS 0.63 % · centile 50 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
PSF
Statut NVD
Deferred

Description

During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.

Scores

VersionScoreVecteurÉvalué par
CVSS 4.0LOW 2.3CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NPSF
CVSS 4.0LOW 2.3CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD · cna@python.org (Secondary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Python Software Foundation · CPythonaffected 0 < 3.9.23 ; affected 3.10.0 < 3.10.17 ; affected 3.11.0 < 3.11.9 ; affected 3.12.0 < 3.12.3 ; affected 3.13.0a1 < 3.13.0a5

Références

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