Aiohttp
by Aio Libs
Source repositories
CVEs (44)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-34520 | Cri | 0.52 | 9.1 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4. | ||
| CVE-2026-47265 | Hig | 0.42 | 7.5 | 0.00 | Jun 2, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect. If a developer uses the `cookies` parameter on a per-request basis then… | ||
| CVE-2026-34516 | Hig | 0.42 | 7.5 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been… | ||
| CVE-2026-34515 | Hig | 0.42 | 7.5 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4. | ||
| CVE-2026-34513 | Hig | 0.42 | 7.5 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4. | ||
| CVE-2026-22815 | Hig | 0.42 | 7.5 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, insufficient restrictions in header/trailer handling could cause uncapped memory usage. This issue has been patched in version 3.13.4. | ||
| CVE-2026-34993 | Med | 0.35 | 6.4 | 0.00 | Jun 2, 2026 | 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… | ||
| CVE-2026-34525 | Med | 0.27 | 5.3 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multiple Host headers were allowed in aiohttp. This issue has been patched in version 3.13.4. | ||
| CVE-2026-34519 | Med | 0.27 | 5.3 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits. This issue has been patched in version 3.13.4. | ||
| CVE-2026-34518 | Med | 0.27 | 5.3 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in… | ||
| CVE-2026-34517 | Med | 0.27 | 5.3 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4. | ||
| CVE-2026-34514 | Med | 0.27 | 5.3 | 0.00 | Apr 1, 2026 | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4. | ||
| CVE-2024-23334 | 0.02 | — | 0.77 | Jan 29, 2024 | aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'follow_symlinks' can be used to determine… | |||
| CVE-2026-54274 | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary If an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. ### Impact If a web application has WebSocket endpoints, it may be possible for an attacker to execute a DoS attack through excessive… | |||
| CVE-2026-54275 | low | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary The `server_hostname` TLS SNI check can be bypassed when an existing connection is reused. ### Impact If an application makes multiple requests to the same domain, but with different per-request `server_hostname` parameters, then the later calls may succeed by… | ||
| CVE-2026-54280 | low | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary Payload resources are not closed correctly when a client disconnects in the middle of a write. ### Impact If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection… | ||
| CVE-2026-54273 | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary No limit was present on the number of pipelined requests that could be queued. ### Impact An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. ----- Patch: https://github.com/aio-libs/aiohttp/commit/dfd… | |||
| CVE-2026-54278 | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary During cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. ### Impact An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a… | |||
| CVE-2026-54277 | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. ### Impact If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an… | |||
| CVE-2026-54276 | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary ``DigestAuthMiddleware`` can send an authentication response after following a cross-origin redirect. ### Impact If the client follows a redirect (the default option) to an attacker controlled domain, the attacker may be able to extract the auth digest. This… |
- risk 0.52cvss 9.1epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4.
- risk 0.42cvss 7.5epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect. If a developer uses the `cookies` parameter on a per-request basis then…
- risk 0.42cvss 7.5epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been…
- risk 0.42cvss 7.5epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4.
- risk 0.42cvss 7.5epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4.
- risk 0.42cvss 7.5epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, insufficient restrictions in header/trailer handling could cause uncapped memory usage. This issue has been patched in version 3.13.4.
- risk 0.35cvss 6.4epss 0.00
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…
- risk 0.27cvss 5.3epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multiple Host headers were allowed in aiohttp. This issue has been patched in version 3.13.4.
- risk 0.27cvss 5.3epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.
- risk 0.27cvss 5.3epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in…
- risk 0.27cvss 5.3epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4.
- risk 0.27cvss 5.3epss 0.00
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.
- CVE-2024-23334Jan 29, 2024risk 0.02cvss —epss 0.77
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'follow_symlinks' can be used to determine…
- CVE-2026-54274Jun 15, 2026risk 0.00cvss —epss 0.00
### Summary If an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. ### Impact If a web application has WebSocket endpoints, it may be possible for an attacker to execute a DoS attack through excessive…
- risk 0.00cvss —epss 0.00
### Summary The `server_hostname` TLS SNI check can be bypassed when an existing connection is reused. ### Impact If an application makes multiple requests to the same domain, but with different per-request `server_hostname` parameters, then the later calls may succeed by…
- risk 0.00cvss —epss 0.00
### Summary Payload resources are not closed correctly when a client disconnects in the middle of a write. ### Impact If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection…
- CVE-2026-54273Jun 15, 2026risk 0.00cvss —epss 0.00
### Summary No limit was present on the number of pipelined requests that could be queued. ### Impact An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. ----- Patch: https://github.com/aio-libs/aiohttp/commit/dfd…
- CVE-2026-54278Jun 15, 2026risk 0.00cvss —epss 0.00
### Summary During cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. ### Impact An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a…
- CVE-2026-54277Jun 15, 2026risk 0.00cvss —epss 0.00
### Summary It is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. ### Impact If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an…
- CVE-2026-54276Jun 15, 2026risk 0.00cvss —epss 0.00
### Summary ``DigestAuthMiddleware`` can send an authentication response after following a cross-origin redirect. ### Impact If the client follows a redirect (the default option) to an attacker controlled domain, the attacker may be able to extract the auth digest. This…
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