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Vulnerability IntelligenceCVE-2026-22815

CVE-2026-22815

HIGH7.5

AIOHTTP: Uncapped memory usage possible through aiohttp allowing unlimited trailer headers

Published Apr 1, 2026

Modified 3 weeks ago

Details

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.

References

WEB

https://github.com/aio-libs/aiohttp/commit/0c2e9da51126238a421568eb7c5b53e5b5d17b36

WEB

https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4

WEB

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-w2fm-2cpv-w7v5

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-22815

CVSS Analysis

CVSS v4.0

6.9

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

NoneVC:N

Vuln. Integrity

NoneVI:N

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

6.9/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Weakness Type (CWE)

Resource Management

CWE-400

Resource Exhaustion

CWE-770

Allocation without Limits

Ecosystems

Timeline

PublishedApr 1, 2026

ModifiedApr 4, 2026

CVE-2026-22815 | Mondoo Vulnerability Intelligence