High severity7.5GHSA Advisory· Published Jun 22, 2026· Updated Jun 26, 2026
CVE-2026-54273
CVE-2026-54273
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
aiohttpPyPI | < 3.14.1 | 3.14.1 |
Affected products
37- osv-coords35 versionspkg:apk/chainguard/airflow-3pkg:apk/chainguard/airflow-core-2pkg:apk/chainguard/apache-beam-python-3.11-sdkpkg:apk/chainguard/apache-beam-python-3.12-sdkpkg:apk/chainguard/apache-beam-python-3.13-sdkpkg:apk/chainguard/authentik-2025.12pkg:apk/chainguard/authentik-2026.2pkg:apk/chainguard/authentik-fips-2025.12pkg:apk/chainguard/authentik-fips-2026.2pkg:apk/chainguard/awxpkg:apk/chainguard/dask-kubernetes-fipspkg:apk/chainguard/lmcache-cuda-12.8pkg:apk/chainguard/metaflow-service-fipspkg:apk/chainguard/mlflowpkg:apk/chainguard/mlflow-fipspkg:apk/chainguard/open-webuipkg:apk/chainguard/py3.10-vllm-cuda-12.4pkg:apk/chainguard/py3.10-vllm-cuda-12.9pkg:apk/chainguard/py3.10-vllm-cuda-13.0pkg:apk/chainguard/py3.12-vllm-cuda-12.4pkg:apk/chainguard/py3.12-vllm-cuda-12.9pkg:apk/chainguard/py3.12-vllm-cuda-13.0pkg:apk/chainguard/py3.13-scanner-test-libraries-aiohttppkg:apk/chainguard/py3.13-vllm-cuda-12.9pkg:apk/chainguard/py3.13-vllm-cuda-13.0pkg:apk/chainguard/request-1276pkg:apk/chainguard/text-generation-inferencepkg:apk/chainguard/tritonserver-backend-vllm-cuda-12.9pkg:apk/chainguard/tritonserver-backend-vllm-cuda-13.0pkg:apk/wolfi/airflow-3pkg:apk/wolfi/mlflowpkg:apk/wolfi/open-webuipkg:pypi/aiohttppkg:rpm/opensuse/python-aiohttp&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-aiohttp&distro=openSUSE%20Tumbleweed
< 3.3.1-r0+ 34 more
- (no CPE)range: < 3.3.1-r0
- (no CPE)range: < 2.11.2-r6
- (no CPE)range: < 2.74.0-r3
- (no CPE)range: < 2.74.0-r1
- (no CPE)range: < 2.74.0-r1
- (no CPE)range: < 2025.12.6-r3
- (no CPE)range: < 2026.2.4-r4
- (no CPE)range: < 2025.12.6-r2
- (no CPE)range: < 2026.2.4-r3
- (no CPE)range: < 24.6.1-r42
- (no CPE)range: < 2026.3.0-r4
- (no CPE)range: < 0.5.3-r0
- (no CPE)range: < 2.5.0-r5
- (no CPE)range: < 3.13.0-r1
- (no CPE)range: < 3.13.0-r1
- (no CPE)range: < 0.9.6-r5
- (no CPE)range: < 0.18.1-r3
- (no CPE)range: < 0.19.1-r0
- (no CPE)range: < 0.20.2-r1
- (no CPE)range: < 0.18.1-r3
- (no CPE)range: < 0.19.1-r0
- (no CPE)range: < 0.20.2-r1
- (no CPE)range: < 0.0.1-r3
- (no CPE)range: < 0.19.1-r0
- (no CPE)range: < 0.20.2-r1
- (no CPE)range: < 0.29.0-r1
- (no CPE)range: < 3.3.7-r16
- (no CPE)range: < 25.9.0_git20260617-r2
- (no CPE)range: < 25.11-r9
- (no CPE)range: < 3.3.1-r0
- (no CPE)range: < 3.13.0-r1
- (no CPE)range: < 0.9.6-r5
- (no CPE)range: < 3.14.1
- (no CPE)range: < 3.11.16-160000.6.1
- (no CPE)range: < 3.14.1-1.1
Patches
Vulnerability mechanics
References
3- github.com/aio-libs/aiohttp/commit/dfdfa9d5aad5d21f91c79fb2ceeba0f8046cb6cfnvdPatchWEB
- github.com/advisories/GHSA-4fvr-rgm6-gqmcghsaADVISORY
- github.com/aio-libs/aiohttp/security/advisories/GHSA-4fvr-rgm6-gqmcnvdThird Party AdvisoryWEB
News mentions
1- Aiohttp: Nine CVEs Disclosed in a Single Day, Five Memory-Exhaustion DoS FlawsVypr Intelligence · Jun 15, 2026