Bzt: aiohttp has vulnerable dependency that is vulnerable to request smuggling
Description
The llhttp library version 8.1.1 contains two request smuggling vulnerabilities. These vulnerabilities affect the aiohttp library versions from 1.16.2 up to but not including 1.16.27, as aiohttp includes llhttp as a dependency. The vulnerabilities are resolved by upgrading to llhttp version 9 or later, which is included in aiohttp version 3.8.6 and above. No detailed technical information or exploitation details have been disclosed yet.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The llhttp 8.1.1 library has two undisclosed request smuggling vulnerabilities. Since aiohttp depends on llhttp, versions of aiohttp from 1.16.2 up to but excluding 1.16.27 are affected. The vulnerabilities can be mitigated by upgrading to llhttp 9 or later, which is included starting with aiohttp 3.8.6. No active exploits are known at this time.
Potential Impact
Potential exploitation of these request smuggling vulnerabilities could allow an attacker to interfere with HTTP request processing, but specific impacts are not disclosed. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade aiohttp to version 3.8.6 or later, which includes llhttp 9 or newer and resolves the vulnerabilities. Users should monitor llhttp advisories for further details. Patch status is confirmed as available via upgrading aiohttp.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-bzt-GHSA-pjjw-qhg8-p2p9
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
Threat ID: 6acaad962cdf04f6565144bb
Added to database: 10/10/2026, 21:26:46 UTC
Last enriched: 10/10/2026, 21:34:09 UTC
Last updated: 10/11/2026, 03:48:07 UTC
Views: 4
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