CVE-2026-18503

Sažetak

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff().

Reference

https://github.com/python/cpython/commit/063d4555c94ef412c731527dbf30193327f2ee82
https://github.com/python/cpython/commit/476fb09cdb0d73e645849d98c610e7e5697ce7c9
https://github.com/python/cpython/commit/89f29c760c02774b099ddd6863268eb13fa3946a
https://github.com/python/cpython/commit/b09a67a20c464f8288c9f9a6b9c7082a74560024
https://github.com/python/cpython/commit/b30c7fa9edd921a118f286e9f90f560777fa693b
https://github.com/python/cpython/commit/fd78b565d7c326f96ae903ab945b47f35d829cf4
https://github.com/python/cpython/issues/98820
https://github.com/python/cpython/pull/153694
https://mail.python.org/archives/list/security-announce@python.org/thread/KQ7NBMCPAZJHRROQXJQE4GMXGLD5KHBS/

CVSS

Base:	0.0
Impact:	None
Exploitability:	None

Pristup

Vektor	Složenost	Autentikacija
None	None	None

Impact

Povjerljivost	Cjelovitost	Dostupnost
None	None	None

CVSS vektor

None

Zadnje važnije ažuriranje

13-08-2026 - 01:16

Objavljeno

10-08-2026 - 14:17