SUSE 12 Python-Tornado Important DoS Security Fix Advisory 2026-1162

## This update for python-tornado fixes the following issues: * CVE-2025-67724: missing validation of the supplied reason phrase (bsc#1254903). * CVE-2025-67725: Denial of Service (DoS) via maliciously crafted HTTP request caused by the HTTPHeaders.add method (bsc#1254905). * CVE-2026-31958: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553). * incomplete validation of cookie attributes allows for injection of user- controlled values in other cookie attributes (bsc#1259630). ## 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 Manager Client Tools for SLE 12 Read the Full Advisory

## This update for python-tornado fixes the following issues: * CVE-2025-67724: missing validation of the supplied reason phrase (bsc#1254903). * CVE-2025-67725: Denial of Service (DoS) via maliciously crafted HTTP request caused by the HTTPHeaders.add method (bsc#1254905). * CVE-2026-31958: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553). * incomplete validation of cookie attributes allows for injection of user- controlled values in other cookie attributes (bsc#1259630). ## 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 Manager Client Tools for SLE 12 Read the Full Advisory

* bsc#1254903 * bsc#1254905 * bsc#1259553 * bsc#1259630 Cross- * CVE-2025-67724 * CVE-2025-67725 * CVE-2026-31958 CVSS scores: * CVE-2025-67724 ( SUSE ): 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N * CVE-2025-67724 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N * CVE-2025-67724 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N * CVE-2025-67724 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N * CVE-2025-67725 ( 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-2025-67725 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2025-67725 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2026-31958 ( SUSE ): 8.7 Read the Full Advisory

* CVE-2025-67724 ( SUSE ): 5.3

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

* CVE-2025-67724 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

* CVE-2025-67724 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

* CVE-2025-67724 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

* CVE-2025-67725 ( 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-2025-67725 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-67725 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-31958 ( SUSE ): 8.7

Read the Full Advisory