Technology · PyPI
aiohttp (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 47 vulnerabilities in aiohttp (PyPI): 0 in the last 7 days and 15 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-69244, was published on 3 August 2026.
- Last 7 days
- 0
- Last 90 days
- 15
- Critical, all time
- 1
- Exploited in the wild
- 0
About aiohttp (PyPI)
An asynchronous HTTP client/server framework for Python and asyncio.
Latest aiohttp (PyPI) vulnerabilities
- CVE-2026-69244: AIOHTTP out-of-bounds heap read in C HTTP response parserhighCVSS 4EPSS 0.5%
- CVE-2026-69243: AIOHTTP request smuggling in WebSocket upgrademediumCVSS 4EPSS 0.4%
- CVE-2026-59881: aio-libs aiohttp resource exhaustion in WebSocket client decompressionmediumCVSS 4EPSS 0.5%
- CVE-2025-69229: PYSEC-2026-1106 - AIOHTTP vulnerable to DoS through chunked messagesmediumCVSS 4EPSS 0.4%
- CVE-2025-69228: PYSEC-2026-1100 - AIOHTTP vulnerable to denial of service through large payloadsmediumCVSS 4EPSS 0.4%
- CVE-2025-69227: PYSEC-2026-1107 - AIOHTTP vulnerable to DoS when bypassing assertsmediumCVSS 4EPSS 0.4%
- CVE-2025-69226: PYSEC-2026-1097 - AIOHTTP vulnerable to brute-force leak of internal static file path componentsmediumCVSS 4EPSS 0.4%
- CVE-2025-69225: PYSEC-2026-1109 - AIOHTTP has unicode match groups in regexes for ASCII protocol elementsmediumCVSS 4EPSS 0.3%
- CVE-2025-69224: PYSEC-2026-1099 - AIOHTTP's unicode processing of header values could cause parsing discrepanciesmediumCVSS 4EPSS 0.2%
- CVE-2025-53643: PYSEC-2026-1104 - AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer…mediumCVSS 4EPSS 0.3%
- CVE-2024-52304: PYSEC-2026-1103 - aiohttp allows request smuggling due to incorrect parsing of chunk extensionsmediumCVSS 4EPSS 0.6%
- CVE-2024-52303: PYSEC-2026-1096 - aiohttp has a memory leak when middleware is enabled when requesting a resource with a non-allowed methodlowCVSS 3.1EPSS 0.6%
- CVE-2024-42367: PYSEC-2026-1108 - In aiohttp, compressed files as symlinks are not protected from path traversallowCVSS 3.1EPSS 0.7%
- CVE-2024-30251: PYSEC-2026-1098 - aiohttp vulnerable to Denial of Service when trying to parse malformed POST requestslowCVSS 3.1EPSS 1.1%
- CVE-2024-27306: PYSEC-2026-1102 - aiohttp Cross-site Scripting vulnerability on index pages for static file handlinglowCVSS 3.1EPSS 0.7%
- CVE-2026-54280: AIOHTTP improper resource shutdown in payload handlingmediumCVSS 4EPSS 0.5%
- CVE-2026-54279: aio-libs aiohttp host-only cookie scope loss in CookieJarmediumCVSS 4EPSS 0.5%
- CVE-2026-54278: aio-libs aiohttp Denial of Service via compressed request body decompressionmediumCVSS 4EPSS 0.5%
- CVE-2026-54277: aio-libs aiohttp denial of service via max_line_size bypass in C parsermediumCVSS 4EPSS 0.6%
- CVE-2026-54276: AIOHTTP information exposure in DigestAuthMiddleware cross-origin redirectsmediumCVSS 4EPSS 0.3%
- CVE-2026-54275: aio-libs aiohttp TLS SNI check bypass during connection reusemediumCVSS 4EPSS 0.5%
- CVE-2026-54274: aio-libs aiohttp memory exhaustion in WebSocket handlermediumCVSS 4EPSS 0.5%
- CVE-2026-54273: aio-libs aiohttp Denial of Service via unbounded request pipeliningmediumCVSS 4EPSS 0.5%
- CVE-2026-50269: aio-libs aiohttp CRLF injection in multipart headersmediumCVSS 4EPSS 0.5%
- CVE-2026-47265: AIOHTTP sensitive cookie leak during cross-origin redirectmediumCVSS 4EPSS 0.2%
Most severe aiohttp (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-34520: aio-libs aiohttp header injection in llhttp C parsercriticalCVSS 9.1EPSS 0.7%
- CVE-2025-69223: aio-libs aiohttp denial of service via zip bomb in HTTP parserhighCVSS 7.5EPSS 0.6%
- CVE-2026-69244: AIOHTTP out-of-bounds heap read in C HTTP response parserhighCVSS 4EPSS 0.5%
- CVE-2026-34993: aio-libs aiohttp code execution via deserialization in CookieJar.loadmediumCVSS 6.4EPSS 0.5%
- CVE-2022-33124: aiohttp Denial of Service via invalid IPv6 URL (Withdrawn)mediumCVSS 5.5EPSS 0.7%
- CVE-2026-34518: AIOHTTP leaks Cookie and Proxy-Authorization headers on cross-origin redirectmediumCVSS 5.3EPSS 0.4%
- CVE-2025-69230: aiohttp logging storm in cookie parsingmediumCVSS 5.3EPSS 0.4%
- CVE-2026-34516: PYSEC-2026-2098 - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4…mediumCVSS 4EPSS 0.6%
- CVE-2026-34513: PYSEC-2026-2095 - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4…mediumCVSS 4EPSS 0.6%
- CVE-2024-52304: PYSEC-2026-1103 - aiohttp allows request smuggling due to incorrect parsing of chunk extensionsmediumCVSS 4EPSS 0.6%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 12 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 1 | 0 | |
| 3 Aug 2026 | 2 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/aiohttp.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "aiohttp (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/aiohttp, 26 September 2026.