regular-expression work during dialect sniffing and consume significant
CPU when applications pass unbounded input to csv.Sniffer.sniff().
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Mon, 10 Aug 2026 19:30:00 +0000
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ssvc
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Mon, 10 Aug 2026 14:45:00 +0000
Mon, 10 Aug 2026 14:15:00 +0000
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| 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(). | |
| Title | Super-linear CPU usage for unbounded input to csv.Sniffer.sniff() | |
| Weaknesses | CWE-1176 | |
| References |
| |
| Metrics |
cvssV4_0
|
Subscriptions
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Status: PUBLISHED
Assigner: PSF
Published:
Updated: 2026-08-10T17:56:28.336Z
Reserved: 2026-07-31T16:35:42.902Z
Link: CVE-2026-18503
Updated: 2026-08-10T17:56:23.854Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-10T18:00:03Z
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CWE-1176
Inefficient CPU Computation