An update of the nginx package has been released.

The installed version of nginx is 1.1.19 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by multiple vulnerabilities :

  - The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module,     which might allow an attacker to over-read or over-write NGINX worker memory resulting in its     termination, using a specially crafted MP4 file. The issue only affects 32-bit NGINX Open Source if it     is built with the ngx_http_mp4_module module and the mp4 directive is used in the configuration file.
    Additionally, the attack is possible only if an attacker can trigger the processing of a specially     crafted MP4 file with the ngx_http_mp4_module module. Note: Software versions which have reached End     of Technical Support (EoTS) are not evaluated. (CVE-2026-27784)

  - NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might     allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in     its termination or possibly code execution, using a specially crafted MP4 file. This issue affects     NGINX Open Source and NGINX Plus if it is built with the ngx_http_mp4_module module and the mp4     directive is used in the configuration file. Additionally, the attack is possible only if an attacker     can trigger the processing of a specially crafted MP4 file with the ngx_http_mp4_module module. Note:
    Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    (CVE-2026-32647)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-457:01 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6923 advisory.

    nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency,     performance, and low memory usage.

    Security Fix(es):

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)

    * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)

    * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)

    * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-6906 advisory.

    - Resolves: RHEL-157874 CVE-2026-32647 nginx: NGINX: Denial of Service or       Code Execution via specially crafted MP4 files
    - Resolves: RHEL-159433 CVE-2026-27651 nginx: NGINX: Denial of Service via       undisclosed requests when ngx_mail_auth_http_module is enabled
    - Resolves: RHEL-159525 CVE-2026-27784 nginx: NGINX: Denial of Service due       to memory corruption via crafted MP4 file

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:7343 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)

    * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)

    * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)

    * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:7343 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6907 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-466:01 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-7002 advisory.

    - Resolves: RHEL-159557 - CVE-2026-27654 nginx: NGINX: Denial of Service or file modification via buffer     overflow in ngx_http_dav_module
    - Resolves: RHEL-159536 - CVE-2026-27784 nginx: NGINX: Denial of Service due to memory corruption via     crafted MP4 file
    - Resolves: RHEL-159444 - CVE-2026-27651 nginx: NGINX: Denial of Service via undisclosed requests when     ngx_mail_auth_http_module is enabled
    - Resolves: RHEL-157885 - CVE-2026-32647 nginx: NGINX: Denial of Service or Code Execution via specially     crafted MP4 files

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:7343 advisory.

    nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency,     performance, and low memory usage.

    Security Fix(es):

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)

    * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)

    * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)

    * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6923 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-7343 advisory.

    - Resolves: RHEL-157887 - CVE-2026-32647 nginx:1.26/nginx: NGINX: Denial of       Service or Code Execution via specially crafted MP4 files
    - Resolves: RHEL-159446 - CVE-2026-27651 nginx:1.26/nginx: NGINX: Denial of       Service via undisclosed requests when ngx_mail_auth_http_module is       enabled
    - Resolves: RHEL-159538 - CVE-2026-27784 nginx:1.26/nginx: NGINX: Denial of       Service due to memory corruption via crafted MP4 file
    - Resolves: RHEL-159559 - CVE-2026-27654 nginx:1.26/nginx: NGINX: Denial of       Service or file modification via buffer overflow in ngx_http_dav_module
    - nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied       connections (CVE-2026-1642)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of nginx installed on the remote host is prior to 1.28.3-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2NGINX1-2026-011 advisory.

    When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed     requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP     authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait     response header. Note: Software versions which have reached End of Technical Support (EoTS) are not     evaluated. (CVE-2026-27651)

    NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow     an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in     termination of the NGINX worker process or modification of source or destination file names outside the     document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV     module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias     directives. The integrity impact is constrained because the NGINX worker process user has low privileges     and does not have access to the entire system. Note: Software versions which have reached End of Technical     Support (EoTS) are not evaluated. (CVE-2026-27654)

    The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module,     which might allow an attacker to over-read or over-write NGINX worker memory resulting in its termination,     using a specially crafted MP4 file. The issue only affects 32-bit NGINX Open Source if it is built with     the ngx_http_mp4_module module and the mp4 directive is used in the configuration file. Additionally, the     attack is possible only if an attacker can trigger the processing of a specially crafted MP4 file with the     ngx_http_mp4_module module.

    Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    (CVE-2026-27784)

    NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the     improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to     inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note:
    Software versions which have reached End of Technical Support (EoTS) are not evaluated. (CVE-2026-28753)

    NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the     improper handling of revoked certificates when configured with the ssl_verify_client on and ssl_ocsp on     directives, allowing the TLS handshake to succeed even after an OCSP check identifies the certificate as     revoked.

    Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    (CVE-2026-28755)

    NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow     an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its     termination or possibly code execution, using a specially crafted MP4 file. This issue affects NGINX Open     Source and NGINX Plus if it is built with the ngx_http_mp4_module module and the mp4 directive is used in     the configuration file. Additionally, the attack is possible only if an attacker can trigger the     processing of a specially crafted MP4 file with the ngx_http_mp4_module module.

    Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    (CVE-2026-32647)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-435:02 advisory.

    * nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files (CVE-2026-32647)
      * NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module     (CVE-2026-27654)
      * NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file (CVE-2026-27784)
      * NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled     (CVE-2026-27651)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014284 advisory.

    NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow     an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its     termination or possibly code execution, using a specially crafted MP4 file. This issue affects NGINX Open     Source and NGINX Plus if it is built with the ngx_http_mp4_module module and the mp4 directive is used in     the configuration file. Additionally, the attack is possible only if an attacker can trigger the     processing of a specially crafted MP4 file with the ngx_http_mp4_module module.


    Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
306353	Photon OS 4.0: Nginx PHSA-2026-4.0-0994	Nessus	PhotonOS Local Security Checks	2026/4/14	2026/4/14	high
306675	nginx 1.1.19 < 1.28.3 / 1.29.x < 1.29.7 Multiple Vulnerabilities in ngx_http_mp4_module	Nessus	Web Servers	2026/4/16	2026/4/17	high
307491	MiracleLinux 9 : nginx:1.26 (AXSA:2026-457:01)	Nessus	Miracle Linux Local Security Checks	2026/4/19	2026/4/22	high
305233	RHEL 9 : nginx:1.24 (RHSA-2026:6923)	Nessus	Red Hat Local Security Checks	2026/4/7	2026/4/7	high
305248	Oracle Linux 10 : nginx (ELSA-2026-6906)	Nessus	Oracle Linux Local Security Checks	2026/4/7	2026/4/7	high
305803	RockyLinux 9 : nginx:1.26 (RLSA-2026:7343)	Nessus	Rocky Linux Local Security Checks	2026/4/9	2026/4/11	high
306650	AlmaLinux 9 : nginx:1.26 (ALSA-2026:7343)	Nessus	Alma Linux Local Security Checks	2026/4/16	2026/4/16	high
306657	AlmaLinux 8 : nginx:1.24 (ALSA-2026:6907)	Nessus	Alma Linux Local Security Checks	2026/4/16	2026/4/16	high
307500	MiracleLinux 8 : nginx:1.24 (AXSA:2026-466:01)	Nessus	Miracle Linux Local Security Checks	2026/4/19	2026/4/22	high
305786	Oracle Linux 9 : nginx (ELSA-2026-7002)	Nessus	Oracle Linux Local Security Checks	2026/4/9	2026/4/9	high
305801	RHEL 9 : nginx:1.26 (RHSA-2026:7343)	Nessus	Red Hat Local Security Checks	2026/4/9	2026/4/9	high
305949	AlmaLinux 9 : nginx:1.24 (ALSA-2026:6923)	Nessus	Alma Linux Local Security Checks	2026/4/10	2026/4/10	high
306118	Oracle Linux 9 : nginx:1.26 (ELSA-2026-7343)	Nessus	Oracle Linux Local Security Checks	2026/4/13	2026/4/13	high
306276	Amazon Linux 2 : nginx, --advisory ALAS2NGINX1-2026-011 (ALASNGINX1-2026-011)	Nessus	Amazon Linux Local Security Checks	2026/4/14	2026/4/14	high
306343	Photon OS 5.0: Nginx PHSA-2026-5.0-0811	Nessus	PhotonOS Local Security Checks	2026/4/14	2026/4/24	high
306717	MiracleLinux 9 : nginx-1.20.1-24.el9_7.2.ML.1 (AXSA:2026-435:02)	Nessus	Miracle Linux Local Security Checks	2026/4/16	2026/4/16	high
310014	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: nginx (UTSA-2026-014284)	Nessus	Unity Linux Local Security Checks	2026/4/23	2026/4/27	high

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