CVE-2023-49081

mediumpriority · track · 21EPSS 0.009 · 59 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.88% (59th) EPSS
CVSS 5.3 · medium
Is it mine?
10 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation made it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or create a new HTTP request if the attacker controls the HTTP version. The vulnerability only occurs if the attacker can control the HTTP version of the request. This issue has been patched in version 3.9.0.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.2
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.2

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4
v3.17.2highAV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · ENISA EU
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · security-advisories@github.comexploitability 3.9 · impact 2.7
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · OSV
v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (10)

Products and version ranges known to be affected.

05

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-q3qx-c6g2-7pw2aiohttp's ClientSession is vulnerable to CRLF injection via version2023-11-27ghsa · osvUS

    ### Summary Improper validation make it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or even create a new HTTP request if the attacker controls the HTTP version. ### Details The vulnerability only occurs if the attacker can control the HTTP version of the request (including its type). For example if an unvalidated JSON value is used as a version and the attacker is then able to pass an array as the `version` parameter. Furthermore, the vulnerability only occurs when the `Connection` header is passed to the `headers` parameter. At this point, the library will use the parsed value to create the request. If a list is passed, then it bypasses validation and it is possible to perform CRLF injection. ### PoC The POC below shows an example of providing an unvalidated array as a version: https://gist.github.com/jnovikov/184afb593d9c2114d77f508e0ccd508e ### Impact CRLF injection leading to Request Smuggling. ### Workaround If these specific conditions are met and you are unable to upgrade, then validate the user input to the `version` parameter to ensure it is a `str`. Patch: https://github.com/aio-libs/aiohttp/pull/7835/files

  • PYSEC-2023-2502023-11-30vendor · osvUS

    aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation made it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or create a new HTTP request if the attacker controls the HTTP version. The vulnerability only occurs if the attacker can control the HTTP version of the request. This issue has been patched in version 3.9.0.

06

also known as (7)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

08

references (20)

External citations — patches, advisories, analysis.

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