SB20260427127 - SUSE update for python-tornado

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Improper Neutralization of HTTP Headers for Scripting Syntax (CVE-ID: CVE-2025-67724)

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to a missing validation of the reason phrase in HTTP response. A remote attacker can inject arbitrary values into the HTTP server response and perform XSS attacks.

2) Excessive Iteration (CVE-ID: CVE-2025-67725)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive iteration within the HTTPHeaders.add() method. A remote attacker can send a specially crafted HTTP request and perform a denial of service attack

3) Resource exhaustion (CVE-ID: CVE-2026-31958)

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in multipart/form-data parsing on the main thread when processing very large multipart request bodies with many parts. A remote attacker can send a specially crafted multipart/form-data request to cause a denial of service.

The number of multipart parts is limited only by the max_body_size setting.

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2026/suse-su-20261162-1/