CVE-2026-34993— AIOHTTP Vulnerable to Deserialization of Untrusted Data
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-34993
Vulnerability Information
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Vulnerability Title
AIOHTTP Vulnerable to Deserialization of Untrusted Data
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-34993
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Patches & Fixes for CVE-2026-34993 (1)
Vendor Advisories for CVE-2026-34993 (1)
IV. Related Vulnerabilities
Same product: aiohttp
- CVE-2026-47265
AIOHTTP vulnerable to cross-origin redirect with per-request - CVE-2026-34525
AIOHTTP: Duplicate Host header accepted - CVE-2026-34520
AIOHTTP: C parser (llhttp) accepts null bytes and control ch - CVE-2026-34519
AIOHTTP: HTTP response splitting via \r in reason phrase - CVE-2026-34518
AIOHTTP: Cookie and Proxy-Authorization headers leaked on cr
Same vendor: aio-libs
- CVE-2026-47265
AIOHTTP vulnerable to cross-origin redirect with per-request - CVE-2026-34525
AIOHTTP: Duplicate Host header accepted - CVE-2026-34520
AIOHTTP: C parser (llhttp) accepts null bytes and control ch - CVE-2026-34519
AIOHTTP: HTTP response splitting via \r in reason phrase - CVE-2026-34518
AIOHTTP: Cookie and Proxy-Authorization headers leaked on cr
Same weakness: CWE-502
V. Comments for CVE-2026-34993
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