{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-5000/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["localGPT"],"_cs_severities":["high"],"_cs_tags":["CVE-2026-5000","localGPT","authentication bypass","API vulnerability"],"_cs_type":"advisory","_cs_vendors":["PromtEngineer"],"content_html":"\u003cp\u003eA missing authentication vulnerability has been identified in PromtEngineer localGPT, specifically in versions up to commit 4d41c7d1713b16b216d8e062e51a5dd88b20b054. This flaw resides within the \u003ccode\u003eLocalGPTHandler\u003c/code\u003e function of the \u003ccode\u003ebackend/server.py\u003c/code\u003e file, affecting the API Endpoint component. By manipulating the \u003ccode\u003eBaseHTTPRequestHandler\u003c/code\u003e argument, a remote attacker can bypass authentication mechanisms, gaining unauthorized access to the application's functionalities. Given the rolling release nature of localGPT, pinpointing specific vulnerable versions is challenging. Successful exploitation could grant attackers significant control over the localGPT instance, potentially leading to data breaches or system compromise. The vendor was notified but did not respond.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable localGPT instance running a version up to commit 4d41c7d1713b16b216d8e062e51a5dd88b20b054.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting the API Endpoint.\u003c/li\u003e\n\u003cli\u003eThe crafted request manipulates the \u003ccode\u003eBaseHTTPRequestHandler\u003c/code\u003e argument.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003eLocalGPTHandler\u003c/code\u003e function processes the manipulated request without proper authentication checks.\u003c/li\u003e\n\u003cli\u003eThe attacker bypasses authentication and gains unauthorized access to the API Endpoint.\u003c/li\u003e\n\u003cli\u003eThe attacker can now perform privileged actions, such as accessing sensitive data or modifying application settings.\u003c/li\u003e\n\u003cli\u003eThe attacker could potentially exfiltrate data or inject malicious content.\u003c/li\u003e\n\u003cli\u003eThe final objective is complete compromise of the localGPT instance, data theft, or disruption of services.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-5000 allows unauthorized remote access to PromtEngineer localGPT instances. This could lead to the exposure of sensitive data processed by the application, modification of configurations, or injection of malicious content. The absence of versioning makes assessing the number of vulnerable installations difficult, but the impact on affected systems is significant, potentially resulting in data breaches, intellectual property theft, and reputational damage.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspect web server logs for unusual requests to the \u003ccode\u003e/api\u003c/code\u003e endpoint that contain malformed or unexpected parameters in the request body, focusing on those affecting authentication or authorization processes. Use the \u0026quot;Detect Suspicious API Endpoint Access\u0026quot; Sigma rule below.\u003c/li\u003e\n\u003cli\u003eMonitor HTTP requests to the localGPT instance, specifically those targeting the API endpoint, for unusual manipulation of request headers or parameters, focusing on parameters related to authentication. Use the \u0026quot;Detect LocalGPT Authentication Bypass Attempt\u0026quot; Sigma rule.\u003c/li\u003e\n\u003cli\u003eWhile a patch is unavailable, implement rate limiting and input validation on the API endpoint to mitigate potential exploitation attempts based on abnormal traffic patterns.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-30T12:00:00Z","date_published":"2024-01-30T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-30-localgpt-auth-bypass/","summary":"A missing authentication vulnerability (CVE-2026-5000) exists in PromtEngineer localGPT's API Endpoint, allowing remote attackers to bypass authentication by manipulating the BaseHTTPRequestHandler argument, potentially leading to unauthorized access and data manipulation.","title":"PromtEngineer localGPT Missing Authentication Vulnerability (CVE-2026-5000)","url":"https://feed.craftedsignal.io/briefs/2024-01-30-localgpt-auth-bypass/"}],"language":"en","title":"CraftedSignal Threat Feed - CVE-2026-5000","version":"https://jsonfeed.org/version/1.1"}