PT-2026-29607

CVE-2026-34518

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Published

2026-02-27

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Updated

2026-10-26

Description by

CVSS 3.1
5.3
Medium
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions AIOHTTP versions prior to 3.13.4
Description When following redirects to a different origin, aiohttp removes the Authorization header while keeping the Cookie and Proxy-Authorization headers. This could lead to the leakage of sensitive information contained in the Cookie and Proxy-Authorization headers to an unintended party.
Recommendations Update to AIOHTTP version 3.13.4 or later.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
Related identifiers
GHSA-966J-VMVW-G2G9
AZL-81773
CLEANSTART-2026-AN24336
CLEANSTART-2026-AN27706
CLEANSTART-2026-AZ09261
CLEANSTART-2026-CQ05396
CLEANSTART-2026-EM82280
CLEANSTART-2026-FU07345
CLEANSTART-2026-GK62594
CLEANSTART-2026-HP19968
CLEANSTART-2026-IR98353
CLEANSTART-2026-KE11953
CLEANSTART-2026-MR94452
CLEANSTART-2026-NL78203
CLEANSTART-2026-NM83456
CLEANSTART-2026-QE89118
CLEANSTART-2026-SO50412
CLEANSTART-2026-WQ85001
CLEANSTART-2026-WU03167
ECHO-758D-EDBE-6881
OESA-2026-2192
OESA-2026-2193
OESA-2026-2194
OPENSUSE-SU-2026:21098-1
PYSEC-2026-2100
SUSE-SU-2026:22173-1
SUSE-SU-2026:3059-1
SUSE-SU-2026:3207-1
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