An update for nginx is now available for openEuler-24.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-4544 Final 1.0 1.0 2026-10-29 Initial 2026-10-29 2026-10-29 openEuler SA Tool V1.0 2026-10-29 nginx security update An update for nginx is now available for openEuler-24.03-LTS-SP1 NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. Security Fix(es): A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their 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, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.(CVE-2026-15176) A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their 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, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact:  This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.(CVE-2026-93479) NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.(CVE-2026-97205) Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directives to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates. Impact This vulnerability can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with access to sensitive information. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.(CVE-2026-97629) An update for nginx is now available for openEuler-24.03-LTS-SP1. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High nginx https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4544 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-15176 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-93479 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-97205 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-97629 https://nvd.nist.gov/vuln/detail/CVE-2026-15176 https://nvd.nist.gov/vuln/detail/CVE-2026-93479 https://nvd.nist.gov/vuln/detail/CVE-2026-97205 https://nvd.nist.gov/vuln/detail/CVE-2026-97629 openEuler-24.03-LTS-SP1 compat-nginx-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-debuginfo-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-debugsource-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-mod-http-image-filter-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-mod-http-perl-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-mod-http-xslt-filter-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-mod-mail-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-mod-stream-1.24.0-16.oe2403sp1.aarch64.rpm nginx-1.24.0-16.oe2403sp1.aarch64.rpm nginx-debuginfo-1.24.0-16.oe2403sp1.aarch64.rpm nginx-debugsource-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-devel-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-http-image-filter-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-http-perl-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-http-xslt-filter-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-mail-1.24.0-16.oe2403sp1.aarch64.rpm nginx-mod-stream-1.24.0-16.oe2403sp1.aarch64.rpm compat-nginx-1.24.0-16.oe2403sp1.src.rpm nginx-1.24.0-16.oe2403sp1.src.rpm compat-nginx-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-debuginfo-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-debugsource-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-mod-http-image-filter-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-mod-http-perl-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-mod-http-xslt-filter-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-mod-mail-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-mod-stream-1.24.0-16.oe2403sp1.x86_64.rpm nginx-1.24.0-16.oe2403sp1.x86_64.rpm nginx-debuginfo-1.24.0-16.oe2403sp1.x86_64.rpm nginx-debugsource-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-devel-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-http-image-filter-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-http-perl-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-http-xslt-filter-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-mail-1.24.0-16.oe2403sp1.x86_64.rpm nginx-mod-stream-1.24.0-16.oe2403sp1.x86_64.rpm compat-nginx-all-modules-1.24.0-16.oe2403sp1.noarch.rpm compat-nginx-filesystem-1.24.0-16.oe2403sp1.noarch.rpm compat-nginx-help-1.24.0-16.oe2403sp1.noarch.rpm nginx-all-modules-1.24.0-16.oe2403sp1.noarch.rpm nginx-filesystem-1.24.0-16.oe2403sp1.noarch.rpm nginx-help-1.24.0-16.oe2403sp1.noarch.rpm A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their 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, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. 2026-10-29 CVE-2026-15176 openEuler-24.03-LTS-SP1 High 8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H nginx security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4544 A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their 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, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact:  This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. 2026-10-29 CVE-2026-93479 openEuler-24.03-LTS-SP1 High 8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H nginx security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4544 NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. 2026-10-29 CVE-2026-97205 openEuler-24.03-LTS-SP1 High 8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H nginx security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4544 Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directives to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates. Impact This vulnerability can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with access to sensitive information. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. 2026-10-29 CVE-2026-97629 openEuler-24.03-LTS-SP1 Medium 6.5 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N nginx security update 2026-10-29 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4544