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().
CVSS Details
- CVSS 4.0 Base Score: 2.4 (LOW)
- CVSS 4.0 Vector: (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3.11-debuginfoUpgrade python3.12Upgrade python3.14-debuginfoUpgrade python3.14-develUpgrade python3.14-freethreading-idleUpgrade python3.12-testUpgrade python3.11-debugsourceUpgrade python3.13-develUpgrade python3.11-idleUpgrade python3.14-tkinterUpgrade python3.14-debugUpgrade python3.13-freethreading-debugUpgrade python3.14-freethreading-tkinterUpgrade python3.14-libsUpgrade python3.13-tkinterUpgrade python3.11-libsUpgrade python3.12-debuginfoUpgrade python3.12-idleUpgrade python3.13-debuginfoUpgrade python3.11-tkinterUpgrade python3.11Upgrade python3.14-freethreading-debugUpgrade python3.13-freethreadingUpgrade python3.14-idleUpgrade python3.14-freethreadingUpgrade python3.11-debugUpgrade python3.13-debugsourceUpgrade python3.13-debugUpgrade python3.14-debugsourceUpgrade python3.13-libsUpgrade python3.12-debugUpgrade python3.14-freethreading-libsUpgrade python3.13-testUpgrade python3.13-idleUpgrade python3.12-libsUpgrade python3.13Upgrade python3.14Upgrade python3.11-develUpgrade python3.12-develUpgrade python3.14-freethreading-testUpgrade python3.12-debugsourceUpgrade python3.11-testUpgrade python3.14-freethreading-develUpgrade python3.12-tkinterUpgrade python3.14-test | Sep 1, 2026 | Aug 10, 2026 |
| Debian | — | Upgrade python3.11 | Oct 12, 2026 | Aug 10, 2026 |
| Redhat_linux | — | No solution exists | Aug 21, 2026 | Aug 10, 2026 |
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