Technologyglobal✓ verified · 90%
aiohttp: C HTTP Parser Bypasses max_line_size for Fragmented Lines
- When
- Where
- Global (internet)
- Category
- cyber_advisory · pip
### Summary It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. ### Impact If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. ----- Patch: https://github.com/aio-libs/aiohttp/commit/5ab61bb4cd88f19b712f12c7c9295fe262bf804d
Sources
- GitHub Advisory Database ↗ · first seen 2026-06-15 20:09 UTC
Defaxon links out to the original reporting and never republishes article text.
Correlated events
Computed by the Defaxon correlation engine — linked by shared actors, co-location, and temporal proximity. Scored hypotheses, never causal claims.