CVE-2026-22815: CWE-400: Uncontrolled Resource Consumption in aio-libs aiohttp
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.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-22815 affects aiohttp versions before 3.13.4. It involves insufficient restrictions on HTTP header and trailer processing, which can result in uncontrolled resource consumption, specifically uncapped memory usage. This is categorized under CWE-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling). The issue has been patched in version 3.13.4 of aiohttp.
Potential Impact
Exploitation of this vulnerability can cause the affected aiohttp server or client to consume excessive memory, potentially leading to denial of service conditions due to resource exhaustion. The CVSS 4.0 base score is 6.9, indicating a medium severity impact. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade to aiohttp version 3.13.4 or later, where this vulnerability has been fixed. No other mitigations are indicated or required beyond applying this official patch.
CVE-2026-22815: CWE-400: Uncontrolled Resource Consumption in aio-libs aiohttp
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-22815 affects aiohttp versions before 3.13.4. It involves insufficient restrictions on HTTP header and trailer processing, which can result in uncontrolled resource consumption, specifically uncapped memory usage. This is categorized under CWE-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling). The issue has been patched in version 3.13.4 of aiohttp.
Potential Impact
Exploitation of this vulnerability can cause the affected aiohttp server or client to consume excessive memory, potentially leading to denial of service conditions due to resource exhaustion. The CVSS 4.0 base score is 6.9, indicating a medium severity impact. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade to aiohttp version 3.13.4 or later, where this vulnerability has been fixed. No other mitigations are indicated or required beyond applying this official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-01-09T22:50:10.288Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69cec35ce6bfc5ba1dfb4d60
Added to database: 4/2/2026, 7:28:28 PM
Last enriched: 4/9/2026, 10:39:04 PM
Last updated: 5/20/2026, 3:44:29 PM
Views: 62
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