Ethical Hacking News
NGINX has released patches for five security vulnerabilities, including a possible Remote Code Execution (RCE) and a TLS bug that may bypass client-certificate checks. The patches were released on October 14, 2026, and are available for NGINX versions 1.30.6 and 1.31.7.
NGINX has released patches for five security vulnerabilities, including a possible Remote Code Execution (RCE) and a TLS bug that may bypass client-certificate checks.The five vulnerabilities are attributed to different security flaws, including a heap overflow, a regex map flaw, a use-after-free vulnerability, an extra bytes injection flaw, and a forged TLS session bug.Users are advised to upgrade to versions 1.30.6 or 1.31.7 on the stable and mainline branches, respectively, to avoid exploitation.Users who cannot upgrade yet can refer to F5's advisories for workarounds for each vulnerability.The patches released by NGINX are an important reminder of the need for continuous security updates and monitoring.
NGINX, a widely used web server software, has recently released patches for five security vulnerabilities, including a possible Remote Code Execution (RCE) and a TLS bug that may bypass client-certificate checks. The patches were released on October 14, 2026, and are available for NGINX versions 1.30.6 and 1.31.7.
The five vulnerabilities are attributed to different security flaws, including a heap overflow in a worker process, a regex map flaw, a use-after-free vulnerability, an extra bytes injection flaw, and a forged TLS session bug. Each of these vulnerabilities has the potential to be exploited by attackers to gain unauthorized access to the system or execute malicious code.
The first vulnerability, CVE-2026-15176, is a heap overflow in a worker process that could potentially cause a crash or execute malicious code. This vulnerability is exposed through the use of an alias with a rewrite and a regex map, and it affects NGINX versions 0.1.29 to 1.31.6. To avoid exploitation, it is recommended to disable the use of alias in the affected location and to use named captures instead.
The second vulnerability, CVE-2026-93479, is a regex map flaw that could also cause a crash or execute malicious code. This vulnerability is exposed through the use of a regex map whose captures are referenced by the root or log_format before the map's output variable, and it affects NGINX versions 1.30.0 to 1.30.5 and 1.31.2 to 1.31.6. To avoid exploitation, it is recommended to use named captures and to use them only inside the block with the regex match.
The third vulnerability, CVE-2026-97205, is a use-after-free vulnerability that could cause a crash or execute malicious code. This vulnerability is exposed through the use of aio enabled and an SSI page with include virtual commands, and it affects NGINX versions 0.8.11 to 1.31.6. To avoid exploitation, it is recommended to turn aio off or to not serve SSI pages.
The fourth vulnerability, CVE-2026-95101, is an extra bytes injection flaw that could allow an attacker to inject extra bytes into a proxied request or a body past the client_max_body_size limit. This vulnerability is exposed through the use of HTTP/3 with proxy_request_buffering on, and it affects NGINX versions 1.25.0 to 1.31.6. To avoid exploitation, it is recommended to set proxy_request_buffering off.
The fifth vulnerability, CVE-2026-97629, is a forged TLS session bug that could bypass client-certificate verification. This vulnerability is exposed through the use of a shared TLS session cache without ssl_session_ticket_key, and it affects NGINX versions 1.23.2 to 1.31.6. To avoid exploitation, it is recommended to remove the shared cache directive or to load keys from a file with ssl_session_ticket_key.
NGINX has released patches for these vulnerabilities, and users are advised to upgrade to versions 1.30.6 or 1.31.7 on the stable branch or mainline branch, respectively. However, some users may not be able to upgrade yet, and in such cases, they can refer to F5's advisories for workarounds for each vulnerability.
The patches released by NGINX are an important reminder of the need for continuous security updates and monitoring. As security threats continue to evolve, it is essential for users to stay up-to-date with the latest security patches and best practices to protect their systems and data.
Related Information:
https://www.ethicalhackingnews.com/articles/NGINX-Vulnerability-Patch-A-Comprehensive-Analysis-of-the-Latest-Security-Fix-ehn.shtml
https://thehackernews.com/2026/10/nginx-fixes-5-flaws-including-possible.html
https://nvd.nist.gov/vuln/detail/CVE-2026-15176
https://www.cvedetails.com/cve/CVE-2026-15176/
https://nvd.nist.gov/vuln/detail/CVE-2026-93479
https://www.cvedetails.com/cve/CVE-2026-93479/
https://nvd.nist.gov/vuln/detail/CVE-2026-97205
https://www.cvedetails.com/cve/CVE-2026-97205/
https://nvd.nist.gov/vuln/detail/CVE-2026-95101
https://www.cvedetails.com/cve/CVE-2026-95101/
https://nvd.nist.gov/vuln/detail/CVE-2026-97629
https://www.cvedetails.com/cve/CVE-2026-97629/
Published: Thu Oct 15 10:09:14 2026 by llama3.2 3B Q4_K_M
