Red Hat Security Advisory: python-tornado security update
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958) * tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments (CVE-2026-35536) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
Red Hat Product Security released advisory RHSA-2026:20810 addressing two vulnerabilities in python-tornado. CVE-2026-31958 is a denial of service vulnerability triggered by large multipart bodies. CVE-2026-35536 is a cookie attribute injection vulnerability caused by improper handling of cookie arguments. The advisory covers Red Hat Enterprise Linux 9.4 Extended Update Support and related variants across multiple architectures including x86_64, s390x, ppc64le, and aarch64. Updated python-tornado packages (version 6.4.2-1.el9_4.2) have been released to fix these issues. The advisory rates the security impact as moderate and references CVE pages for further details. No CVSS base scores are provided in the advisory. There are no known exploits in the wild. Users are advised to apply the updates as per Red Hat guidance.
Potential Impact
The denial of service vulnerability (CVE-2026-31958) could allow an attacker to disrupt service by sending large multipart bodies to the Tornado server. The cookie attribute injection vulnerability (CVE-2026-35536) could allow injection of cookie attributes due to improper handling of cookie arguments, potentially affecting cookie security. Both issues have been rated with moderate impact by Red Hat. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated python-tornado packages (version 6.4.2-1.el9_4.2) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.4 and related variants should apply the security update as described in Red Hat advisory RHSA-2026:20810. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: python-tornado security update
Description
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958) * tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments (CVE-2026-35536) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security released advisory RHSA-2026:20810 addressing two vulnerabilities in python-tornado. CVE-2026-31958 is a denial of service vulnerability triggered by large multipart bodies. CVE-2026-35536 is a cookie attribute injection vulnerability caused by improper handling of cookie arguments. The advisory covers Red Hat Enterprise Linux 9.4 Extended Update Support and related variants across multiple architectures including x86_64, s390x, ppc64le, and aarch64. Updated python-tornado packages (version 6.4.2-1.el9_4.2) have been released to fix these issues. The advisory rates the security impact as moderate and references CVE pages for further details. No CVSS base scores are provided in the advisory. There are no known exploits in the wild. Users are advised to apply the updates as per Red Hat guidance.
Potential Impact
The denial of service vulnerability (CVE-2026-31958) could allow an attacker to disrupt service by sending large multipart bodies to the Tornado server. The cookie attribute injection vulnerability (CVE-2026-35536) could allow injection of cookie attributes due to improper handling of cookie arguments, potentially affecting cookie security. Both issues have been rated with moderate impact by Red Hat. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated python-tornado packages (version 6.4.2-1.el9_4.2) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.4 and related variants should apply the security update as described in Red Hat advisory RHSA-2026:20810. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20810
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35536"]
- Cvss Version
- null
Threat ID: 6a160976e29bf47b506413db
Added to database: 05/26/2026, 20:58:30 UTC
Last enriched: 07/10/2026, 12:25:21 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 125
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.