PT-2026-69842 · Python · Python
CVSS v4.0
2.4
Low
| Vector | 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 |
Name of the Vulnerable Software and Affected Versions
Python (affected versions not specified)
Description
Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing, leading to significant CPU consumption when applications pass unbounded input to the
csv.Sniffer.sniff() function. Super-linear regular-expression work refers to a condition where the time taken to process a string increases disproportionately to the length of the input, potentially causing a denial of service.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
As a temporary workaround, avoid passing unbounded input to the
csv.Sniffer.sniff() function.Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Python