Is CVE-2026-54273 actively exploited?

No active exploitation of CVE-2026-54273 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-54273 be exploited remotely?

Yes. CVE-2026-54273 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-54273?

CVE-2026-54273 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-54273

CWE-770Published: June 22, 2026· Updated: Jun 26, 2026

7.5

CVSS v3.1

EPSS:0.26%probability of exploitation in 30 daysPercentile:17.4th

Official Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, no limit was present on the number of pipelined requests that could be queued. An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.

NVD Source

Technical Analysis

CVE-2026-54273 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.