{"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/cpes/cpe2.3ametahydra-core/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:meta:hydra-core:*:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-106441"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["hydra-core (\u003c 1.3.6, \u003e= 1.4.0.dev0, \u003c 1.4.0.dev9)"],"_cs_severities":["high"],"_cs_tags":["remote-code-execution","hydra-core","python"],"_cs_type":"advisory","_cs_vendors":["Meta"],"content_html":"\u003cp\u003eHydra-core, a configuration management framework, suffers from a critical vulnerability (CVE-2026-106441) where logging configurations are processed unsafely. The application passes user-controlled logging configuration directly to Python's \u003ccode\u003elogging.config.dictConfig()\u003c/code\u003e function. Because the logging configurator resolves and invokes importable classes and factories, an attacker capable of providing a configuration file or modifying application settings can force the application to instantiate arbitrary Python objects.\u003c/p\u003e\n\u003cp\u003eThis bypasses Hydra's existing \u003ccode\u003einstantiate()\u003c/code\u003e target policy because the logging configuration path does not utilize that mechanism. Successful exploitation results in arbitrary code execution running with the privileges of the host application process. Hydra 1.3.6 introduces a blacklist to mitigate this, while Hydra 1.4.0.dev9 implements a more robust execution whitelist approach, which is the recommended security boundary for production environments.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows for remote code execution in any application utilizing an affected version of \u003ccode\u003ehydra-core\u003c/code\u003e that permits external or untrusted input to define its logging configuration. This could lead to full system compromise, data exfiltration, or lateral movement within the environment where the Hydra-based application is deployed.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade to Hydra 1.3.6 or later, or 1.4.0.dev9 or later for users on the 1.4 prerelease branch to address CVE-2026-106441.\u003c/li\u003e\n\u003cli\u003eFor Hydra 1.4 deployments, implement an execution whitelist via trusted Python code to strictly constrain callable selection.\u003c/li\u003e\n\u003cli\u003eAudit application configuration files to ensure that logging settings are not derived from untrusted user input or external, unverified sources.\u003c/li\u003e\n\u003cli\u003eReview the official Hydra execution whitelist documentation to ensure proper implementation of the new primary security boundary.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-07T22:53:53Z","date_published":"2026-10-07T22:53:53Z","id":"https://feed.craftedsignal.io/briefs/2026-10-hydra-logging-rce/","summary":"Hydra-core versions prior to 1.3.6 and 1.4.0.dev9 are vulnerable to arbitrary code execution due to improper validation of logging configuration passed to dictConfig, allowing attackers to invoke arbitrary Python callables.","title":"Arbitrary Code Execution in Hydra-core via Unsafe Logging Configuration","url":"https://feed.craftedsignal.io/briefs/2026-10-hydra-logging-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - Cpe:2.3:a:meta:hydra-Core:*:*:*:*:*:*:*:*","version":"https://jsonfeed.org/version/1.1"}