CVE-2026-50269
python-aiohttp: improper validation of user-controlled strings allows for CRLF injection in multipart headers
CVE-2026-50269 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-50269, 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
0.0053
45th percentile
improper validation of user-controlled strings allows for CRLF injection in multipart headers
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-aiohttp · Debian 12.15 (bookworm) | 3.8.4-1+deb12u2 | DEBIAN-CVE-2026-50269 | Jun 24, 2026 |
| python-aiohttp · Debian 14 | 3.14.0-1 | DEBIAN-CVE-2026-50269 | 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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