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SUSE Python Aiohttp Important Denial of Service Issues 2026-3207-1

suse
Calendar Grey July 23, 2026
Scroller Suse
The SUSE update addresses 19 issues in python-aiohttp, focusing on security enhancements and performance improvements.
A security update for python-aiohttp addresses 19 vulnerabilities, including potential denial of service and information disclosure, impacting various SUSE Linux products; advised ...

Summary

## This update for python-aiohttp fixes the following issues * CVE-2026-22815: insufficient restrictions in header/trailer handling can cause uncapped memory usage and a denial of service (bsc#1261320). * CVE-2026-34513: unbounded DNS cache can cause a excessive memory usage and lead to a denial of service (bsc#1261321). * CVE-2026-34514: `content_type` parameter manipulation can lead to header injection (bsc#1261322). * CVE-2026-34516: response with excessive multipart headers can use more memory than intended and cause a denial of service (bsc#1261329). * CVE-2026-34517: large multipart form fields read into memory without size check can cause a denial of service (bsc#1261331). * CVE-2026-34518: retained `Cookie` and `Proxy-Authorization` headers when

Topics%20covered

Topics Covered

security advisory denial of service SuSE important memory usage python-aiohttp

References

* bsc#1261320

* bsc#1261321

* bsc#1261322

* bsc#1261329

* bsc#1261331

* bsc#1261332

* bsc#1261334

* bsc#1261335

* bsc#1261343

* bsc#1267471

* bsc#1267561

* bsc#1268398

* bsc#1268543

* bsc#1268544

* bsc#1268549

* bsc#1268556

* bsc#1268559

* bsc#1268560

* bsc#1268561

Cross-

* CVE-2026-22815

* CVE-2026-34513

* CVE-2026-34514

* CVE-2026-34516

* CVE-2026-34517

* CVE-2026-34518

* CVE-2026-34519

* CVE-2026-34520

* CVE-2026-34525

* CVE-2026-34993

* CVE-2026-47265

* CVE-2026-50269

* CVE-2026-54273

* CVE-2026-54274

* CVE-2026-54275

* CVE-2026-54277

* CVE-2026-54278

* CVE-2026-54279

* CVE-2026-54280

CVSS scores:

* CVE-2026-22815 ( SUSE ): 6.9

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

* CVE-2026-22815 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3207-1
Release Date: 2026-07-23T14:10:51Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important memory usage python-aiohttp

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