SUSE alert openSUSE-SU-2026:21053-1 (python-starlette)

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null@suse.de
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openSUSE-SU-2026:21053-1: important: Security update for python-starlette
Date:
             
 
Tue, 30 Jun 2026 09:48:07 +0200
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<20260630074807.0C954FF76@maintenance.suse.de>
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Article
openSUSE security update: security update for python-starlette
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21053-1
Rating: important
References:

  * bsc#1268389
  * bsc#1268517
  * bsc#1268520



Cross-References:

  * CVE-2026-48817
  * CVE-2026-54282
  * CVE-2026-54283



CVSS scores:

  * CVE-2026-48817 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-54282 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-54282 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-54283 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-54283 ( SUSE ): 8.7 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 3 vulnerabilities and has 3 bug fixes can now be installed.

Description:

This update for python-starlette fixes the following issues

- CVE-2026-48817: arbitrary HTTP method dispatched to `HTTPEndpoint` attributes via `getattr`
(bsc#1268389).
- CVE-2026-54282: request path that lacks a leading forward slash can lead to request.url.hostname
manipulation
  (bsc#1268520).
- CVE-2026-54283: urlencoded request body with an oversized data can lead to a denial of service
(bsc#1268517).


Patch instructions:

   To install this openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1066=1

Package List:

- openSUSE Leap 16.0:

  python313-starlette-0.41.3-160000.4.1

References:

  * https://www.suse.com/security/cve/CVE-2026-48817.html
  * https://www.suse.com/security/cve/CVE-2026-54282.html
  * https://www.suse.com/security/cve/CVE-2026-54283.html