Upstream information

CVE-2026-42945 at MITRE

Description

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, for systems with Address Space Layout Randomization (ASLR ) disabled, code execution is possible. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Other Security Trackers

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (F5 Networks) SUSE
Base Score 8.1 8.6
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack Vector Network Network
Attack Complexity High Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact High Low
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail CNA (F5 Networks) SUSE
Base Score 9.2 8.3
Vector CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Attack Vector Network Network
Attack Complexity High High
Attack Requirements None None
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact High Low
Vulnerable System Integrity Impact High Low
Vulnerable System Availability Impact High High
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP7 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP7 nginx Affected
SUSE Linux Enterprise Server 15 SP7 nginx Affected
SUSE Linux Enterprise Server 16.1 nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 nginx Affected
SUSE Linux Enterprise Server for SAP applications 16.1 nginx Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP5 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP6 nginx Affected
SUSE Linux Enterprise Server 15 SP4 nginx Affected
SUSE Linux Enterprise Server 15 SP4-LTSS nginx Affected
SUSE Linux Enterprise Server 15 SP5 nginx Affected
SUSE Linux Enterprise Server 15 SP5-LTSS nginx Affected
SUSE Linux Enterprise Server 15 SP6 nginx Affected
SUSE Linux Enterprise Server 15 SP6-LTSS nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 nginx Affected
SUSE Manager Proxy 4.3 nginx Affected
SUSE Manager Proxy LTS 4.3 nginx Affected
SUSE Manager Retail Branch Server 4.3 nginx Affected
SUSE Manager Retail Branch Server LTS 4.3 nginx Affected
SUSE Manager Server 4.3 nginx Affected
SUSE Manager Server LTS 4.3 nginx Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.0 nginx Affected
SUSE Enterprise Storage 6 nginx Affected
SUSE Enterprise Storage 7 nginx Affected
SUSE Enterprise Storage 7.1 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS nginx Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP2 nginx Affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 nginx Affected
SUSE Linux Enterprise Real Time 15 SP2 nginx Affected
SUSE Linux Enterprise Real Time 15 SP3 nginx Affected
SUSE Linux Enterprise Real Time 15 SP4 nginx Affected
SUSE Linux Enterprise Server 15 SP1 nginx Affected
SUSE Linux Enterprise Server 15 SP1-BCL nginx Affected
SUSE Linux Enterprise Server 15 SP1-LTSS nginx Affected
SUSE Linux Enterprise Server 15 SP2 nginx Affected
SUSE Linux Enterprise Server 15 SP2-BCL nginx Affected
SUSE Linux Enterprise Server 15 SP2-LTSS nginx Affected
SUSE Linux Enterprise Server 15 SP3 nginx Affected
SUSE Linux Enterprise Server 15 SP3-BCL nginx Affected
SUSE Linux Enterprise Server 15 SP3-LTSS nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 nginx Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 nginx Affected
SUSE Manager Proxy 4.0 nginx Affected
SUSE Manager Proxy 4.1 nginx Affected
SUSE Manager Proxy 4.2 nginx Affected
SUSE Manager Retail Branch Server 4.0 nginx Affected
SUSE Manager Retail Branch Server 4.1 nginx Affected
SUSE Manager Retail Branch Server 4.2 nginx Affected
SUSE Manager Server 4.0 nginx Affected
SUSE Manager Server 4.1 nginx Affected
SUSE Manager Server 4.2 nginx Affected
openSUSE Leap 15.3 nginx Affected
openSUSE Leap 15.4 nginx Affected
openSUSE Leap 15.5 nginx Affected
openSUSE Leap 15.6 nginx Affected
Container Status
private-registry/1.2/harbor-portal
private-registry/harbor-nginx
private-registry/harbor-portal
suse/nginx
suse/rmt-nginx		 nginxAffected

SUSE Timeline for this CVE

CVE page created: Wed May 13 19:38:00 2026
CVE page last modified: Wed May 13 21:32:01 2026