PHP

Windows PHP Updated to Patch Critical Brotli Vulnerability CVE-2026-111497

The PHP development team has released updated Windows builds of PHP that bundle a patched version of the Brotli compression library. The update addresses CVE-2026-111497, a critical out-of-bounds write flaw in Google's Brotli decoder that can lead to remote code execution, information disclosure, or denial of service. The vulnerability carries a CVSS v4.0 base score of 9.2 and is rated Critical. It affects PHP environments where the cURL extension has automatic decompression of HTTP responses enabled, allowing Brotli decoding to occur. Although cURL automatic decompression is disabled by default, applications or HTTP client libraries may enable it. The fix updates the bundled Brotli component to version 1.2.1 in the releases PHP 8.5.12-1, 8.4.27-1, 8.3.36-1, and 8.2.35-1 published on October 26.

Top Cybersecurity Articles October 18-24 2026: GitLab, nginx, PHP and Node.js Flaws Dominate

Security NEXT published its weekly ranking of the ten most-read articles between October 18 and October 24 2026. The list is led by a critical GitLab vulnerability that also received back-port fixes for older branches. Multiple high-severity issues in the nginx web server, including three rated critical, took second place. PHP disclosed several serious flaws with an update scheduled for October 21, while Node.js prepared a security release for the same date. Additional entries covered actively exploited Fortinet and BeyondTrust vulnerabilities, Chrome 156 fixes for 353 issues, and U.S. government guidance urging immediate patching of PHP flaws or taking systems offline.

Two Critical RCE Vulnerabilities Patched in PHP with CVSS 9.2 Scores

The PHP development team has disclosed two severe remote code execution vulnerabilities affecting the widely used scripting language. Both issues, tracked as CVE-2026-109618 and CVE-2026-109619, received a CVSSv4.0 base score of 9.2 and were rated Critical. The flaws stem from improper memory handling during request processing and cleanup phases. Exploitation could allow attackers to execute arbitrary code by manipulating uninitialized or residual data in worker processes. Security updates addressing both vulnerabilities were released on October 21, 2026, and users are strongly urged to apply the patches immediately. The advisories were previewed the previous day, highlighting the urgency of the fixes.

Multiple Critical Vulnerabilities Found in PHP, Fixes Scheduled for October 21

The PHP security team has confirmed two serious vulnerabilities in the PHP scripting language. Both issues received a CVSSv4.0 base score of 9.2, placing them in the Critical severity category. The team announced the upcoming security update on October 20, 2026, and plans to release the patched versions at 14:00 UTC on October 21, which corresponds to 23:00 Japan time. Specific technical details, affected components, and vulnerable versions remain undisclosed until the patches are published. The team urges administrators to prepare for immediate updates once the fixes become available. Earlier release is possible if vulnerability details leak or active exploitation is detected.

Top Cybersecurity Stories: SharePoint Exploits Warned by US Authorities, Citrix and WordPress Flaws Lead Weekly Rankings

Security NEXT has published its weekly ranking of the most viewed articles from September 27 to October 3, 2026, highlighting critical vulnerability disclosures and confirmed exploitation cases. US authorities issued warnings about active exploitation of five vulnerabilities affecting SharePoint and WordPress. Citrix NetScaler received multiple vulnerability advisories with two flaws already confirmed as exploited in the wild. Apple released iOS 26.7.1 to address vulnerabilities potentially used in targeted attacks against specific individuals. Other notable incidents include a personal data breach at Times Car car-sharing service and a ransomware attack impacting Keio Electric Railway operations.

Top 10 Security Stories: WordPress XSS Flaw, PHP Vulnerabilities, and VMware ESX Issues Lead Weekly Roundup

Security NEXT has published its weekly ranking of the most viewed articles for the period from August 2 to August 8, 2026. The list highlights critical vulnerabilities affecting widely used platforms including WordPress, PHP, pgAdmin 4, VMware ESX, and Chrome. Several entries focus on newly released security updates and ongoing exploitation warnings issued by US authorities. The ranking also includes real-world incidents such as credit card skimming by employees and data leaks caused by phishing attacks. This weekly overview reflects the topics that drew the highest attention from the Japanese cybersecurity community during the specified week.