CVE-2026-54274
python-aiohttp: incomplete websocket frame payloads can bypass memory use limits and cause a DoS via excessive
CVE-2026-54274 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-54274, released June 24, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
IMPORTANT
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile
incomplete websocket frame payloads can bypass memory use limits and cause a DoS via excessive
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-aiohttp · Debian 12.15 (bookworm) | 3.8.4-1+deb12u2 | DEBIAN-CVE-2026-54274 | Jun 24, 2026 |
| python-aiohttp · Debian 14 | 3.14.1-1 | DEBIAN-CVE-2026-54274 | Jun 24, 2026 |
| python-aiohttp · opensuse-leap 16.0 | 3.11.16-160000.6.1 | OPENSUSE-SU-2026:21372-1 | Jul 18, 2026 |
| python-aiohttp · sles 15.6 | 3.6.0-150100.3.38.1 | SUSE-SU-2026:3208-1 | Jul 23, 2026 |
| python-aiohttp · sles 15.7 | 3.6.0-150100.3.38.1 | SUSE-SU-2026:3208-1 | Jul 23, 2026 |
| python-aiohttp · sles 16.0 | 3.11.16-160000.6.1 | SUSE-SU-2026:22819-1 | Jul 18, 2026 |
| python39-oci-sdk · ol 9 | 0:2.187.0-1.0.5.el9 | ELSA-2026-604898 | Nov 7, 2026 |
| python39-oci-sdk-docs · ol 9 | 0:2.187.0-1.0.5.el9 | ELSA-2026-604898 | Nov 7, 2026 |
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