Technology · PyPI
aiohttp (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 56 vulnerabilities in aiohttp (PyPI): 0 in the last 7 days and 8 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-111750, was published on 19 October 2026. 8 vulnerabilities in the last four weeks, up from none in the four before.
- Last 7 days
- 0
- Last 90 days
- 8
- Critical, all time
- 1
- Exploited in the wild
- 0
About aiohttp (PyPI)
aiohttp is a Python library for building asynchronous HTTP clients and servers.
Latest aiohttp (PyPI) vulnerabilities
- CVE-2026-111750: aiohttp HTTP request smuggling in pure Python parsermediumCVSS 4EPSS 0.3%
- CVE-2026-111749: aiohttp host-only cookie scope bypass in subdomain handlingmediumCVSS 4EPSS 0.3%
- CVE-2026-111748: aiohttp Request scheme manipulation in absolute-form requestsmediumCVSS 4EPSS 0.4%
- CVE-2026-111066: AIOHTTP multipart request file descriptor exhaustionhighCVSS 4EPSS 0.4%
- CVE-2026-111065: aiohttp cookie Max-Age integer overflow causes connection pool exhaustionmediumCVSS 4EPSS 0.4%
- CVE-2026-111064: aiohttp keepalive timeout enforcement bypasshighCVSS 4EPSS 0.4%
- CVE-2026-111063: AIOHTTP secure cookie enforcement bypasslowEPSS 0.2%
- aiohttp resource exhaustion via unbounded memory/CPU usehighCVSS 4
- 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-2025-53643: 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%
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 0.5%
- CVE-2025-69223: aio-libs aiohttp denial of service via zip bomb in HTTP parserhighCVSS 7.5EPSS 0.6%
- CVE-2026-34516: AIOHTTP has a Multipart Header Size BypasshighCVSS 7.5EPSS 0.4%
- CVE-2026-34513: AIOHTTP Affected by Denial of Service (DoS) via Unbounded DNS Cache in TCPConnectorhighCVSS 7.5EPSS 0.4%
- CVE-2026-22815: aiohttp allows unlimited trailer headers, leading to possible uncapped memory usagehighCVSS 7.5EPSS 0.4%
- CVE-2026-34515: AIOHTTP affected by UNC SSRF/NTLMv2 Credential Theft/Local File Read in static resource handler on WindowshighCVSS 7.5EPSS 0.4%
- CVE-2025-69228: PYSEC-2026-1100 - AIOHTTP vulnerable to denial of service through large payloadshighCVSS 7.5EPSS 0.4%
- CVE-2025-69227: PYSEC-2026-1107 - AIOHTTP vulnerable to DoS when bypassing assertshighCVSS 7.5EPSS 0.4%
- CVE-2026-69244: AIOHTTP out-of-bounds heap read in C HTTP response parserhighCVSS 4EPSS 0.5%
- CVE-2026-111064: aiohttp keepalive timeout enforcement bypasshighCVSS 4EPSS 0.4%
Vulnerabilities per week
8 vulnerabilities in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 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 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 8 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many aiohttp (PyPI) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/aiohttp)<a href="https://junglewise.ai/threats/technologies/aiohttp"><img src="https://junglewise.ai/threats/technologies/aiohttp/badge.svg" alt="aiohttp (PyPI) vulnerabilities" /></a>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, and this page as text at https://junglewise.ai/threats/technologies/aiohttp.md, 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, 13 November 2026.