Red Hat Security Advisory: nginx:1.24 security update
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.
AI Analysis
Technical Summary
This advisory covers four distinct vulnerabilities in nginx affecting Red Hat Enterprise Linux 9 and related distributions. CVE-2026-32647 involves denial of service or code execution triggered by specially crafted MP4 files. CVE-2026-27654 is a buffer overflow in the ngx_http_dav_module that can cause denial of service or file modification. CVE-2026-27784 involves denial of service due to memory corruption from crafted MP4 files. CVE-2026-27651 causes denial of service through undisclosed requests when the ngx_mail_auth_http_module is enabled. Red Hat has released updated nginx packages (version 1.20.1-24.el9_7.2) to remediate these vulnerabilities.
Potential Impact
The vulnerabilities can lead to denial of service conditions, potentially disrupting web and proxy services. Additionally, one vulnerability (CVE-2026-32647) may allow code execution, and another (CVE-2026-27654) may permit file modification, which could compromise system integrity. These impacts affect systems running the affected nginx versions on Red Hat Enterprise Linux 9 and related platforms.
Mitigation Recommendations
Red Hat has released updated nginx packages that address these vulnerabilities. Users should apply the security update available in Red Hat Enterprise Linux 9 repositories, specifically the nginx-1.20.1-24.el9_7.2 package or later. Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these official patches is the recommended and effective mitigation. No alternative mitigations or workarounds are indicated in the advisory.
Red Hat Security Advisory: nginx:1.24 security update
Description
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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers four distinct vulnerabilities in nginx affecting Red Hat Enterprise Linux 9 and related distributions. CVE-2026-32647 involves denial of service or code execution triggered by specially crafted MP4 files. CVE-2026-27654 is a buffer overflow in the ngx_http_dav_module that can cause denial of service or file modification. CVE-2026-27784 involves denial of service due to memory corruption from crafted MP4 files. CVE-2026-27651 causes denial of service through undisclosed requests when the ngx_mail_auth_http_module is enabled. Red Hat has released updated nginx packages (version 1.20.1-24.el9_7.2) to remediate these vulnerabilities.
Potential Impact
The vulnerabilities can lead to denial of service conditions, potentially disrupting web and proxy services. Additionally, one vulnerability (CVE-2026-32647) may allow code execution, and another (CVE-2026-27654) may permit file modification, which could compromise system integrity. These impacts affect systems running the affected nginx versions on Red Hat Enterprise Linux 9 and related platforms.
Mitigation Recommendations
Red Hat has released updated nginx packages that address these vulnerabilities. Users should apply the security update available in Red Hat Enterprise Linux 9 repositories, specifically the nginx-1.20.1-24.el9_7.2 package or later. Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these official patches is the recommended and effective mitigation. No alternative mitigations or workarounds are indicated in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:7002
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-27654","CVE-2026-27784","CVE-2026-32647"]
- Cvss Version
- null
Threat ID: 6a3da1bf4853345fc181c359
Added to database: 06/25/2026, 21:46:39 UTC
Last enriched: 06/25/2026, 21:51:14 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 30
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.