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openSUSE 16 Security Update : python-aiohttp (openSUSE-SU-2026:21372-1)

high Nessus Plugin ID 328918

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21372-1 advisory.

 This update for python-aiohttp fixes the following issues

 - CVE-2026-50269: improper validation of user-controlled strings allows for CRLF injection in multipart headers (bsc#1268398).
 - CVE-2026-54273: no limit in the HTTP/1 pipelined request queue can lead to excessive resource consumption (bsc#1268543).
 - CVE-2026-54274: incomplete websocket frame payloads can bypass memory use limits and cause a DoS via excessive resource consumption (bsc#1268544).
 - CVE-2026-54275: `server_hostname` TLS SNI check bypass when an existing connection is reused (bsc#1268549).
 - CVE-2026-54277: `max_line_size` bypass when using the optimised C HTTP parser can lead to excessive resource consumption (bsc#1268556).
 - CVE-2026-54278: unread compressed request bodies can bypass `client_max_size` during cleanup and cause a DoS (bsc#1268559).
 - CVE-2026-54279: host-only cookies become domain cookies after `CookieJar` persistence (bsc#1268560).
 - CVE-2026-54280: payload resources are not closed correctly when a client disconnects in the middle of a write and can cause resource starvation (bsc#1268561).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected python313-aiohttp package.

See Also

https://bugzilla.suse.com/1268398

https://bugzilla.suse.com/1268543

https://bugzilla.suse.com/1268544

https://bugzilla.suse.com/1268549

https://bugzilla.suse.com/1268556

https://bugzilla.suse.com/1268559

https://bugzilla.suse.com/1268560

https://bugzilla.suse.com/1268561

https://www.suse.com/security/cve/CVE-2026-50269

https://www.suse.com/security/cve/CVE-2026-54273

https://www.suse.com/security/cve/CVE-2026-54274

https://www.suse.com/security/cve/CVE-2026-54275

https://www.suse.com/security/cve/CVE-2026-54277

https://www.suse.com/security/cve/CVE-2026-54278

https://www.suse.com/security/cve/CVE-2026-54279

https://www.suse.com/security/cve/CVE-2026-54280

Plugin Details

Severity: High

ID: 328918

File Name: openSUSE-2026-21372-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/22/2026

Updated: 7/22/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-54280

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-54278

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:python313-aiohttp

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/18/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-50269, CVE-2026-54273, CVE-2026-54274, CVE-2026-54275, CVE-2026-54277, CVE-2026-54278, CVE-2026-54279, CVE-2026-54280