🛡️ CVE-2026-50269 on PyPI (Root.io) — aiohttp

🟢 CVSS 2.0 — Low ✅ No Known Exploit OSV
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-50269 in aiohttp - Patched by Root

Root has patched CVE-2026-50269 in the aiohttp package for Root:PyPI. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-50269 as tracked by PyPI (Root.io), for the package aiohttp. The fix is available in version 3.8.6+aikido.12; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity low, availability none. (rating taken from the base CVE record.)

Weakness class

ROOT-APP-PYPI-CVE-2026-50269 is classified as CWE-113: HTTP Response Splitting. Unescaped input reaches an HTTP header, letting an attacker inject line breaks and forge additional headers or responses.

Affected software

ROOT-APP-PYPI-CVE-2026-50269 is recorded against 2 packages.

  • aiohttp (fixed in 3.8.6+aikido.12)
  • rootio-aiohttp (fixed in 3.13.4+root.io.3)

Timeline and source

Published on 11 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Details

Severity LOW
CVSS Score 2.0
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-11
Updated 2026-08-12
Modified 2026-08-11
Fix URL N/A

Affected Packages

Software From version Fixed in
aiohttp — 3.8.6+aikido.12
rootio-aiohttp — 3.13.4+root.io.3

References

N/A

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