SUSE-SU-2026:22360-1: important: Security update for python-starlette

[SLE-SECURITY-UPDATES]

# Security update for python-starlette

Announcement ID: SUSE-SU-2026:22360-1  
Release Date: 2026-06-24T21:38:49Z  
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-2026-48817 ( NVD ):  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 ):  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-2026-54282 ( 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 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-54282 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * 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
  * 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 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves three vulnerabilities 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 SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-1066=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1066=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (noarch)
    * python313-starlette-0.41.3-160000.4.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * 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
  * https://bugzilla.suse.com/show_bug.cgi?id=1268389
  * https://bugzilla.suse.com/show_bug.cgi?id=1268517
  * https://bugzilla.suse.com/show_bug.cgi?id=1268520

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