SUSE SLED15 / SLES15 Security Update : python-tornado (SUSE-SU-2026:4404-1)

critical Nessus Plugin ID 362577

Synopsis

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

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4404-1 advisory.

- CVE-2023-54397: Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. At (bsc#1280689).
- CVE-2024-58384: CRLF injection in CurlAsyncHTTPClient headers (bsc#1281059).
- CVE-2026-91990: splitting of multipart data before validation of the `max_parts` limit allows for resource exhaustion and a denial of service (bsc#1281439).
- CVE-2026-91991: incomplete fix for cookie attribute injection allows for cookie validation bypass via semicolon- delimited data in capitalized parameters (bsc#1281440).

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 python3-tornado package.

Plugin Details

Severity: Critical

ID: 362577

File Name: suse_SU-2026-4404-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/2/2026

Updated: 10/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Percentile: 96.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-91991

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS Score Source: CVE-2023-54397

CVSS v4

Risk Factor: Critical

Base Score: 9

Threat Score: 6.5

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2023-54397

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:python3-tornado

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: 9/30/2026

Vulnerability Publication Date: 9/15/2026

Reference Information

CVE: CVE-2023-54397, CVE-2024-58384, CVE-2026-91990, CVE-2026-91991

SuSE: SUSE-SU-2026:4404-1

Detections

Analytics