CVE-2025-69227— AIOHTTP vulnerable to DoS when bypassing asserts
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-69227
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
AIOHTTP vulnerable to DoS when bypassing asserts
Source: NVD (National Vulnerability Database)
Vulnerability Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
aiohttp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
aiohttp是aio-libs开源的一个开源的用于 asyncio 和 Python 的异步 HTTP 客户端/服务器框架。 aiohttp 3.13.2及之前版本存在安全漏洞，该漏洞源于绕过断言语句可能导致无限循环，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-69227
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-69227
请登录查看更多情报信息。
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2025-69227
Same Patch Batch · aio-libs · 2026-01-05 · 8 CVEs total
| CVE-2025-69223 | 7.5 HIGH | AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb |
| CVE-2025-69230 | AIOHTTP Vulnerable to Cookie Parser Warning Storm | |
| CVE-2025-69226 | AIOHTTP allows for a brute-force leak of internal static filepath components | |
| CVE-2025-69229 | AIOHTTP vulnerable to DoS through chunked messages | |
| CVE-2025-69225 | AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields | |
| CVE-2025-69224 | AIOHTTP's Unicode processing of header values could cause parsing discrepancies | |
| CVE-2025-69228 | AIOHTTP vulnerable to denial of service through large payloads |
IV. Related Vulnerabilities
Same product: aiohttp
- 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 - CVE-2026-34517
AIOHTTP: Late size enforcement for non-file multipart fields
Same vendor: aio-libs
- 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 - CVE-2026-34517
AIOHTTP: Late size enforcement for non-file multipart fields
Same weakness: CWE-835
- CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-41511
OpenMcdf has an Infinite loop DoS via crafted CFB directory - CVE-2026-5407
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6536
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6534
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi
V. Comments for CVE-2025-69227
No comments yet