CVE-2026-54280 (GCVE-0-2026-54280)
Vulnerability from cvelistv5 – Published: 2026-06-22 16:40 – Updated: 2026-06-22 18:18
VLAI
EPSS
VEX
Title
AIOHTTP: Payload Response Resources Are Not Closed After Mid-Body Disconnect
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection or similar closes the file. This vulnerability is fixed in 3.14.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 18:15 UTC
CWE
- CWE-404 - Improper Resource Shutdown or Release
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/aio-libs/aiohttp/security/advi… | x_refsource_CONFIRM |
| https://github.com/aio-libs/aiohttp/commit/a762ed… | x_refsource_MISC |
Impacted products
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| Author | Source | Type | Date | Other |
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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