GHSA-2345-wr3r-cxf2Low
Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect...
🔗 CVE IDs covered (1)
📋 Description
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().
🔗 References (11)
- https://nvd.nist.gov/vuln/detail/CVE-2026-18503
- https://github.com/python/cpython/issues/98820
- https://github.com/python/cpython/pull/153694
- 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/b30c7fa9edd921a118f286e9f90f560777fa693b
- https://mail.python.org/archives/list/[email protected]/thread/KQ7NBMCPAZJHRROQXJQE4GMXGLD5KHBS
- https://github.com/python/cpython/commit/b09a67a20c464f8288c9f9a6b9c7082a74560024
- https://github.com/python/cpython/commit/fd78b565d7c326f96ae903ab945b47f35d829cf4
- https://github.com/advisories/GHSA-2345-wr3r-cxf2