VDB
DEBIAN-CVE-2026-34516
DEBIAN-CVE-2026-34516
PUBLISHED
CVSS 6.599999904632568 MEDIUM
Record from OSV · Published April 1, 2026
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| python-aiohttp | Debian:14 | 3.13.5-1 |
Risk scores
CVSS 4.0
6.599999904632568
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | python-aiohttp | 3.9.5-1, 3.10.4-1, 3.10.5-1 |
| Debian:14 | python-aiohttp | 3.11.16-1, 3.12.15-1, 3.13.0-1 |
| Debian:13 | python-aiohttp | 3.13.5-1, 3.14.0-1, 3.14.1-1 |
Timeline
- Apr 1, 2026 CVE Published
- Oct 26, 2026 CVE Updated
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