CVE-2025-1795

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.
CVSS

No CVSS.

Configurations

No configuration.

History

03 Nov 2025, 21:18

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html -

03 Nov 2025, 16:15

Type Values Removed Values Added
References
  • () https://github.com/python/cpython/commit/a4ef689ce670684ec132204b1cd03720c8e0a03d -
  • () https://github.com/python/cpython/commit/d4df3c55e4c5513947f907f24766b34d2ae8c090 -
Summary
  • (es) Durante el plegado de una lista de direcciones, cuando una coma separadora termina en una línea plegada y esa línea debe codificarse en Unicode, entonces el separador en sí también se codifica en Unicode. El comportamiento esperado es que la coma separadora siga siendo una coma de plan. Esto puede provocar que algunos servidores de correo interpreten mal el encabezado de la dirección.

28 Feb 2025, 21:15

Type Values Removed Values Added
CWE CWE-116

28 Feb 2025, 20:15

Type Values Removed Values Added
References
  • () https://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48 -
  • () https://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593 -
  • () https://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74 -
  • () https://mail.python.org/archives/list/security-announce@python.org/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/ -

28 Feb 2025, 19:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-02-28 19:15

Updated : 2025-11-03 21:18


NVD link : CVE-2025-1795

Mitre link : CVE-2025-1795

CVE.ORG link : CVE-2025-1795


JSON object : View

Products Affected

No product.

CWE
CWE-116

Improper Encoding or Escaping of Output