CVE-2025-53643
python-aiohttp: request smuggling vulnerability due to incorrect parsing trailer sections of an HTTP request
CVE-2025-53643 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2025-53643, released July 14, 2025. 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
0.0036
29th percentile
request smuggling vulnerability due to incorrect parsing trailer sections of an HTTP request
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-Brotli · opensuse-leap 16.0 | 1.1.0-160000.3.1 | OPENSUSE-SU-2026:20204-1 | Feb 12, 2026 |
| python-Brotli · sles 16.0 | 1.1.0-160000.3.1 | SUSE-SU-2026:20425-1 | Feb 12, 2026 |
| python-aiohttp · Debian 12.15 (bookworm) | 3.8.4-1+deb12u2 | DEBIAN-CVE-2025-53643 | Jul 14, 2025 |
| python-aiohttp · Debian 14 | 3.12.15-1 | DEBIAN-CVE-2025-53643 | Jul 14, 2025 |
| python-aiohttp · opensuse-leap 15.6 | 3.9.3-150400.10.33.1 | SUSE-SU-2025:03057-1 | Sep 3, 2025 |
| python-aiohttp · opensuse-leap 16.0 | 3.11.16-160000.3.1 | OPENSUSE-SU-2026:20204-1 | Feb 12, 2026 |
| python-aiohttp · sles 15.6 | 3.6.0-150100.3.27.1 | SUSE-SU-2025:03201-1 | Sep 12, 2025 |
| python-aiohttp · sles 15.7 | 3.6.0-150100.3.27.1 | SUSE-SU-2025:03201-1 | Sep 12, 2025 |
| python-aiohttp · sles 16.0 | 3.11.16-160000.3.1 | SUSE-SU-2026:20425-1 | Feb 12, 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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