## This update for python-Flask fixes the following issue: * CVE-2026-27205: information disclosure due to Flask session not adding the `Vary: Cookie` header (bsc#1258700). ## 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-16.0-878=1 * SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-878=1 ## Package List: * SUSE Linux Enterprise Server 16.0 (noarch) * python313-Flask-3.1.1-160000.3.1 * python313-Flask-doc-3.1.1-160000.3.1 * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch) * python313-Flask-3.1.1-160000.3.1
* bsc#1258700
Cross-
* CVE-2026-27205
CVSS scores:
* CVE-2026-27205 ( SUSE ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-27205 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
* CVE-2026-27205 ( NVD ): 2.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
* CVE-2026-27205 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Products:
* SUSE Linux Enterprise Server 16.0
* SUSE Linux Enterprise Server for SAP applications 16.0
An update that solves one vulnerability can now be installed.
##
* https://www.suse.com/security/cve/CVE-2026-27205.html
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