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SUSE-SU-2026:22173-1 Not scored

Security update for python-aiohttp

This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denial of service (bsc#1261320). - CVE-2026-34513: unbounded DNS cache can cause a denial of service (bsc#1261321). - CVE-2026-34514: content_type parameter manipulation can lead to header Injection (bsc#1261322). - CVE-2026-34516: excessive multipart headers can cause a denial of service (bsc#1261329). - CVE-2026-34517: large multipart form fields can cause a denial of service (bsc#1261331). - CVE-2026-34518: retained Cookie and Proxy-Authorization headers during redirects can lead to information disclosure (bsc#1261332). - CVE-2026-34519: reason parameter can be use to perform header injection (bsc#1261334). - CVE-2026-34520: improper character handling can lead to header injection (bsc#1261335). - CVE-2026-34525: multiple Host headers can potentially lead to security bypass (bsc#1261343). - CVE-2026-34993: arbitrary code execution via loading untrusted input in CookieJar.load() (bsc#1267471). - CVE-2026-47265: cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect (bsc#1267561).

Exploit probability Not scored
Published June 19, 2026
Required by Not available
Last source change June 24, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Server 16.0 python-aiohttp
SUSE:Linux Enterprise Server for SAP applications 16.0 python-aiohttp

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2026:22173-1

This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denial of service (bsc#1261320). - CVE-2026-34513: unbounded DNS cache can cause a denial of service (bsc#1261321). - CVE-2026-34514: content_type parameter manipulation can lead to header Injection (bsc#1261322). - CVE-2026-34516: excessive multipart headers can cause a denial of service (bsc#1261329). - CVE-2026-34517: large multipart form fields can cause a denial of service (bsc#1261331). - CVE-2026-34518: retained Cookie and Proxy-Authorization headers during redirects can lead to information disclosure (bsc#1261332). - CVE-2026-34519: reason parameter can be use to perform header injection (bsc#1261334). - CVE-2026-34520: improper character handling can lead to header injection (bsc#1261335). - CVE-2026-34525: multiple Host headers can potentially lead to security bypass (bsc#1261343). - CVE-2026-34993: arbitrary code execution via loading untrusted input in CookieJar.load() (bsc#1267471). - CVE-2026-47265: cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect (bsc#1267561).

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05 / REFERENCES

Further evidence