CVE-2025-11468
5.7
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Summary
When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Python Software Foundation | CPython | 0 < 3.10.20 | affected |
| Python Software Foundation | CPython | 3.11.0 < 3.11.15 | affected |
| Python Software Foundation | CPython | 3.12.0 < 3.12.13 | affected |
| Python Software Foundation | CPython | 3.13.0 < 3.13.12 | affected |
| Python Software Foundation | CPython | 3.14.0 < 3.14.3 | affected |
| Python Software Foundation | CPython | 3.15.0a1 < 3.15.0a6 | affected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/python/cpython/pull/143936
- https://github.com/python/cpython/issues/143935
- https://mail.python.org/archives/list/security-announce@python.org/thread/FELSEOLBI2QR6YLG6Q7VYF7FWSGQTKLI/
- https://github.com/python/cpython/commit/17d1490aa97bd6b98a42b1a9b324ead84e7fd8a2
- https://github.com/python/cpython/commit/61614a5e5056e4f61ced65008d4576f3df34acb6
- https://github.com/python/cpython/commit/e9970f077240c7c670e8a6fc6662f2b30d3b6ad0
- https://github.com/python/cpython/commit/f738386838021c762efea6c9802c82de65e87796
- https://github.com/python/cpython/commit/a76e4cd62dd68e7cbe86e37e6ed988495a646b66
- https://github.com/python/cpython/commit/003b8315669b9f08b1010a49071f73f15f818094
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