CVE•Published 2026-06-02•Modified 2026-06-05•0 articles on news•5 live references•NVD data

CVE-2026-34993Aiohttp · Aiohttp

Vulnerability data via NVD (ingested)

CVSS v3.1

6.4

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L

EPSS percentile

Exploit Prediction Scoring System · top 82% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.

Timeline

Published 2026-06-02

Modified 2026-06-05

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-34993

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Aiohttp Aiohttp"

All exposed Aiohttp Aiohttp instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Aiohttp"

HTTP body or banner mentions "Aiohttp" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-34993