VDB
DEBIAN-CVE-2026-34519
DEBIAN-CVE-2026-34519
PUBLISHED
CVSS 5.300000190734863 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, an attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits. 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 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | python-aiohttp | 3.9.5-1, 3.10.4-1, 3.10.5-1 |
| Debian:13 | python-aiohttp | 0, 3.11.16-1+deb13u1, 3.12.15-1 |
| Debian:14 | python-aiohttp | 3.11.16-1, 3.12.15-1, 3.13.0-1 |
Timeline
- Apr 1, 2026 CVE Published
- Oct 27, 2026 CVE Updated
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