GHSA-mfx4-hv73-q22v

Suggest an improvement
Source
https://github.com/advisories/GHSA-mfx4-hv73-q22v
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-mfx4-hv73-q22v/GHSA-mfx4-hv73-q22v.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-mfx4-hv73-q22v
Aliases
Downstream
Published
2026-08-03T20:46:10Z
Modified
2026-09-10T03:51:14Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
AIOHTTP: HTTP request smuggling via WebSocket upgrade
Details

Summary

The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.

Impact

If using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.

Patch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98

Database specific 
{
    "cwe_ids": [
        "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-03T20:46:10Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
}
References

Affected packages

PyPI / aiohttp

Package

Name
aiohttp
View open source insights on deps.dev
Purl
pkg:pypi/aiohttp

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.14.2

Affected versions

0.*
0.1
0.2
0.3
0.4
0.4.1
0.4.2
0.4.3
0.4.4
0.5.0
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.6.5
0.7.0
0.7.1
0.7.2
0.7.3
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.9.0
0.9.1
0.9.2
0.9.3
0.10.0
0.10.1
0.10.2
0.11.0
0.12.0
0.13.0
0.13.1
0.14.0
0.14.1
0.14.2
0.14.3
0.14.4
0.15.0
0.15.1
0.15.2
0.15.3
0.16.0
0.16.1
0.16.2
0.16.3
0.16.4
0.16.5
0.16.6
0.17.0
0.17.1
0.17.2
0.17.3
0.17.4
0.18.0
0.18.1
0.18.2
0.18.3
0.18.4
0.19.0
0.20.0
0.20.1
0.20.2
0.21.0
0.21.1
0.21.2
0.21.4
0.21.5
0.21.6
0.22.0a0
0.22.0b0
0.22.0b1
0.22.0b2
0.22.0b3
0.22.0b4
0.22.0b5
0.22.0b6
0.22.0
0.22.1
0.22.2
0.22.3
0.22.4
0.22.5
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.5
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.2.0
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
2.*
2.0.0rc1
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.1.0
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.3.0a1
2.3.0a2
2.3.0a3
2.3.0a4
2.3.0
2.3.1a1
2.3.1
2.3.2b2
2.3.2b3
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
2.3.8
2.3.9
2.3.10
3.*
3.0.0b0
3.0.0b1
3.0.0b2
3.0.0b3
3.0.0b4
3.0.0
3.0.1
3.0.2
3.0.3
3.0.4
3.0.5
3.0.6
3.0.7
3.0.8
3.0.9
3.1.0
3.1.1
3.1.2
3.1.3
3.2.0
3.2.1
3.3.0a0
3.3.0
3.3.1
3.3.2a0
3.3.2
3.4.0a0
3.4.0a3
3.4.0b1
3.4.0b2
3.4.0
3.4.1
3.4.2
3.4.3
3.4.4
3.5.0a1
3.5.0b1
3.5.0b2
3.5.0b3
3.5.0
3.5.1
3.5.2
3.5.3
3.5.4
3.6.0a0
3.6.0a1
3.6.0a2
3.6.0a3
3.6.0a4
3.6.0a5
3.6.0a6
3.6.0a7
3.6.0a8
3.6.0a9
3.6.0a11
3.6.0a12
3.6.0b0
3.6.0
3.6.1b3
3.6.1b4
3.6.1
3.6.2a0
3.6.2a1
3.6.2a2
3.6.2
3.6.3
3.7.0b0
3.7.0b1
3.7.0
3.7.1
3.7.2
3.7.3
3.7.4
3.7.4.post0
3.8.0a7
3.8.0b0
3.8.0
3.8.1
3.8.2
3.8.3
3.8.4
3.8.5
3.8.6
3.9.0b0
3.9.0b1
3.9.0rc0
3.9.0
3.9.1
3.9.2
3.9.3
3.9.4rc0
3.9.4
3.9.5
3.10.0b1
3.10.0rc0
3.10.0
3.10.1
3.10.2
3.10.3
3.10.4
3.10.5
3.10.6rc0
3.10.6rc1
3.10.6rc2
3.10.6
3.10.7
3.10.8
3.10.9
3.10.10
3.10.11rc0
3.10.11
3.11.0b0
3.11.0b1
3.11.0b2
3.11.0b3
3.11.0b4
3.11.0b5
3.11.0rc0
3.11.0rc1
3.11.0rc2
3.11.0
3.11.1
3.11.2
3.11.3
3.11.4
3.11.5
3.11.6
3.11.7
3.11.8
3.11.9
3.11.10
3.11.11
3.11.12
3.11.13
3.11.14
3.11.15
3.11.16
3.11.17
3.11.18
3.12.0b0
3.12.0b1
3.12.0b2
3.12.0b3
3.12.0rc0
3.12.0rc1
3.12.0
3.12.1rc0
3.12.1
3.12.2
3.12.3
3.12.4
3.12.6
3.12.7rc0
3.12.7
3.12.8
3.12.9
3.12.10
3.12.11
3.12.12
3.12.13
3.12.14
3.12.15
3.13.0
3.13.1
3.13.2
3.13.3
3.13.4
3.13.5
3.14.0
3.14.1

Database specific

last_known_affected_version_range 
"<= 3.14.1"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-mfx4-hv73-q22v/GHSA-mfx4-hv73-q22v.json"