Risk Scores
CVSS v3.1
7.099999904632568
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | python3.11 |
Timeline
- Apr 1, 2026 CVE Published
- Apr 1, 2026 Distribution Patch
=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3152 python3.11 security update 1 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: python3.11 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2025-15366 CVE-2025-15367 CVE-2026-0865 CVE-2026-1299 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:6253 Comment: CVSS (Max): 7.1 CVE-2026-1299 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N EPSS (Max): 0.1% (32nd) CVE-2026-0865 2026-03-30 - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:6253 - Security Advisory Issued: 2026-03-31 Updated: 2026-03-31 Synopsis Python3.11 security update Type/Severity Security Advisory: Moderate Topic An update for python3.11 is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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): o cpython: wsgiref.headers.Headers allows header newline injection in Python (CVE-2026-0865) o cpython: IMAP command injection in user-controlled commands (CVE-2025-15366) o cpython: POP3 command injection in user-controlled commands (CVE-2025-15367) o cpython: email header injection due to unquoted newlines (CVE-2026-1299) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products o Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.4 x86_64 o Red Hat Enterprise Linux Server - AUS 9.4 x86_64 o Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.4 s390x o Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.4 ppc64le o Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.4 aarch64 o Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le o Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 o Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.4 x86_64 o Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.4 ppc64le o Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.4 s390x o Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.4 aarch64 o Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 o Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x o Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 o Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 o Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le o Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x Fixes o BZ - 2431367 - CVE-2026-0865 cpython: wsgiref.headers.Headers allows header newline injection in Python o BZ - 2431368 - CVE-2025-15366 cpython: IMAP command injection in user-controlled commands o BZ - 2431373 - CVE-2025-15367 cpython: POP3 command injection in user-controlled commands o BZ - 2432437 - CVE-2026-1299 cpython: email header injection due to unquoted newlines CVEs o CVE-2025-15366 o CVE-2025-15367 o CVE-2026-0865 o CVE-2026-1299 References o https://access.redhat.com/security/updates/classification/#moderate - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | python3.11 |