{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/tags/dependency-management/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Composer (all versions)"],"_cs_severities":["high"],"_cs_tags":["vulnerability","dependency-management","rce"],"_cs_type":"advisory","_cs_vendors":["Composer"],"content_html":"\u003cp\u003eComposer, the dependency manager for PHP, has been found to contain multiple vulnerabilities that could allow an attacker to bypass existing security controls and achieve arbitrary code execution. These flaws represent a significant risk to development environments and CI/CD pipelines that rely on Composer to manage project dependencies. If exploited, an attacker could potentially execute malicious code within the context of the user or system running Composer, leading to full system compromise or unauthorized access to project source code and secrets. Defenders should focus on ensuring that all Composer installations are updated to the latest available version and auditing existing project configurations for unauthorized dependency modifications.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows remote attackers to execute arbitrary code, which can result in data theft, unauthorized modification of project files, or lateral movement within the network. These vulnerabilities affect all platforms where Composer is installed, including Linux, Windows, and macOS, impacting any organization utilizing PHP development workflows.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cp\u003ePrioritized actions for security teams:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpdate all instances of Composer to the latest stable release to resolve the reported vulnerabilities.\u003c/li\u003e\n\u003cli\u003eAudit \u003ccode\u003ecomposer.lock\u003c/code\u003e files across all repositories to identify unexpected changes or unauthorized package inclusions.\u003c/li\u003e\n\u003cli\u003eRestrict the ability of CI/CD runners to perform outbound network requests to untrusted repositories or unknown package sources.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-08-28T15:09:35Z","date_published":"2026-08-28T15:09:35Z","id":"https://feed.craftedsignal.io/briefs/2026-08-composer-vulnerabilities/","summary":"Composer contains multiple vulnerabilities that allow a remote attacker to bypass security restrictions and execute arbitrary code on systems using the dependency manager.","title":"Multiple Vulnerabilities in Composer Dependency Manager","url":"https://feed.craftedsignal.io/briefs/2026-08-composer-vulnerabilities/"}],"language":"en","title":"CraftedSignal Threat Feed - Dependency-Management","version":"https://jsonfeed.org/version/1.1"}