CVE-2025-1795
lowpriority · track · 0EPSS 0.006 · 49 %ileDEEURUUSEPSS · scored 2026-10-22
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (29)
Products and version ranges known to be affected.
advisories (7)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0471Python: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2025-03-02csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Python ausnutzen, um Informationen offenzulegen.
- WID-SEC-W-2025-1439Dell Secure Connect Gateway: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2025-06-30csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
- WID-SEC-W-2025-1850Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2025-08-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
- BIT-libpython-2025-1795Mishandling of comma during folding and unicode-encoding of email headers2025-08-11vendor · osvUS
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.
- BIT-python-2025-1795Mishandling of comma during folding and unicode-encoding of email headers2025-04-14vendor · osvUS
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.
- BIT-python-min-2025-1795Mishandling of comma during folding and unicode-encoding of email headers2025-04-14vendor · osvUS
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.
- PSF-2025-32025-02-28vendor · osvUS
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.
also known as (8)
Other names and identifiers for this entity.
- CNNVD-202502-3767cnnvd
- EUVD-2025-5930enisa_euvd
- BDU:2025-11593fstec_bdu
- GHSA-c266-vjjr-2v8jenisa_euvd
- BIT-libpython-2025-1795osv
- BIT-python-2025-1795osv
- BIT-python-min-2025-1795osv
- PSF-2025-3osv
sources
Which sources assert this record, and when.
references (27)
External citations — patches, advisories, analysis.
- https://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48cnnvd
- https://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593cnnvd
- https://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74cnnvd
- https://github.com/python/cpython/issues/100884cnnvd
- https://github.com/python/cpython/pull/100885cnnvd
- https://github.com/python/cpython/pull/119099cnnvd
- https://mail.python.org/archives/list/security-announce@python.org/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/cnnvd
- https://vigilance.fr/vulnerability/Python-Core-spoofing-via-Email-Headers-Comma-46488cnnvd
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