CVE-2023-49082
mediumpriority · track · 21EPSS 0.009 · 61 %ileDEEURUUSEPSS · scored 2026-10-27
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling). This issue has been patched in version 3.9.0.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0522Red Hat Ansible Automation Platform: Mehrere SchwachstellenDeutsch2024-02-29csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Ansible Automation Platform ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, Dateien zu manipulieren, Phishing-Angriffe durchzuführen oder Cross-Site Scripting (XSS)-Angriffe auszuführen. Einige dieser Schwachstellen erfordern eine Benutzerinteraktion, um sie erfolgreich auszunutzen.
- WID-SEC-W-2024-0949Red Hat Satellite: Mehrere SchwachstellenDeutsch2024-04-23csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Satellite ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, HTTP-Request-Smuggling-Angriffe durchzuführen oder Phishing- und Cross-Site-Scripting (XSS)-Angriffe auszuführen.
- GHSA-qvrw-v9rv-5rjxaiohttp's ClientSession is vulnerable to CRLF injection via method2023-11-27ghsa · osvUS
### Summary Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. ### Details The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. Previous releases performed no validation on the provided value. If an attacker controls the HTTP method it will be used as is and can lead to HTTP request smuggling. ### PoC A minimal example can be found here: https://gist.github.com/jnovikov/7f411ae9fe6a9a7804cf162a3bdbb44b ### Impact If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling). ### Workaround If unable to upgrade and using user-provided values for the request method, perform manual validation of the user value (e.g. by restricting it to a few known values like GET, POST etc.). Patch: https://github.com/aio-libs/aiohttp/pull/7806/files
- PYSEC-2023-2512023-11-29vendor · osvUS
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling). This issue has been patched in version 3.9.0.
also known as (7)
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sources
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references (19)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2023-49082cnnvd
- https://gist.github.com/jnovikov/7f411ae9fe6a9a7804cf162a3bdbb44bcnnvd
- https://github.com/aio-libs/aiocnnvd
- https://github.com/aio-libs/aiohttp/commit/e4ae01c2077d2cfa116aa82e4ff6866857f7c466cnnvd
- https://github.com/aio-libs/aiohttp/pull/7806/filescnnvd
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-qvrw-v9rv-5rjxcnnvd
- https://lists.debian.org/debian-lts-announce/2025/02/msg00002.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSYWMP64ZFCTC3VO6RY6EC6VSSMV6I3A/cnnvd
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