# CVE-2025-1795

## Summary

- **CVE ID:** CVE-2025-1795
- **Severity:** LOW
- **CVSS Score:** 2.3 (CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** N/A
- **Published:** Feb 28, 2025
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

- Python Software Foundation — CPython (0)
- Python Software Foundation — CPython (3.10.0)
- Python Software Foundation — CPython (3.11.0)
- Python Software Foundation — CPython (3.12.0)
- Python Software Foundation — CPython (3.13.0a1)

## References

- [CNA](https://github.com/python/cpython/issues/100884)
- [CNA](https://github.com/python/cpython/pull/100885)
- [CNA](https://github.com/python/cpython/pull/119099)
- [CNA](https://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48)
- [CNA](https://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593)
- [CNA](https://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74)
- [CNA](https://mail.python.org/archives/list/security-announce@python.org/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/)
- [CNA](https://github.com/python/cpython/commit/a4ef689ce670684ec132204b1cd03720c8e0a03d)
- [CNA](https://github.com/python/cpython/commit/d4df3c55e4c5513947f907f24766b34d2ae8c090)
- [CVE](https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.61%
- **EPSS Percentile:** 47.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._