{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-7177/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.3,"id":"CVE-2026-7177"}],"_cs_exploited":false,"_cs_products":["NextChat"],"_cs_severities":["medium"],"_cs_tags":["ssrf","cve-2026-7177","web-application"],"_cs_type":"advisory","_cs_vendors":["ChatGPTNextWeb"],"content_html":"\u003cp\u003eA server-side request forgery (SSRF) vulnerability, identified as CVE-2026-7177, affects ChatGPTNextWeb NextChat up to version 2.16.1. The vulnerability resides within the \u003ccode\u003eproxyHandler\u003c/code\u003e function in the \u003ccode\u003eapp/api/[provider]/[...path]/route.ts\u003c/code\u003e file. Publicly available exploits demonstrate that a remote attacker can manipulate this function to make unauthorized requests to internal resources. The project maintainers were notified, but have not yet responded to the issue, increasing the risk of widespread exploitation. This vulnerability allows attackers to potentially access sensitive information or internal services that are not intended to be exposed to the internet.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a NextChat instance running a vulnerable version (\u0026lt;= 2.16.1).\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting the \u003ccode\u003eapp/api/[provider]/[...path]/route.ts\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eThe crafted request manipulates the \u003ccode\u003eproxyHandler\u003c/code\u003e function parameters.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003eproxyHandler\u003c/code\u003e function, without proper validation, forwards the manipulated request to an internal server or resource.\u003c/li\u003e\n\u003cli\u003eThe internal server processes the request as if it originated from the NextChat server itself.\u003c/li\u003e\n\u003cli\u003eThe internal server returns the response to the NextChat server.\u003c/li\u003e\n\u003cli\u003eThe NextChat server forwards the response from the internal server back to the attacker.\u003c/li\u003e\n\u003cli\u003eThe attacker gains access to potentially sensitive information or can interact with internal services due to the SSRF vulnerability.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this SSRF vulnerability allows attackers to potentially access internal resources, including sensitive data or internal services not intended for public access. While the CVSS score is 7.3 (HIGH), the impact is limited to information disclosure and limited modification/availability of resources. The number of affected instances is currently unknown. If successfully exploited, attackers could potentially use the compromised NextChat instance as a proxy to further compromise the internal network.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply input validation and sanitization to the \u003ccode\u003eproxyHandler\u003c/code\u003e function within \u003ccode\u003eapp/api/[provider]/[...path]/route.ts\u003c/code\u003e to prevent malicious manipulation (Reference: CVE-2026-7177).\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for unusual requests targeting the \u003ccode\u003eapp/api\u003c/code\u003e endpoint with potentially malicious parameters (See example Sigma rule below).\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to restrict access from the NextChat server to only necessary internal resources (General security best practice related to SSRF).\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules provided to detect exploitation attempts against NextChat instances.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-28T12:00:00Z","date_published":"2026-04-28T12:00:00Z","id":"/briefs/2026-04-nextchat-ssrf/","summary":"A server-side request forgery (SSRF) vulnerability in ChatGPTNextWeb NextChat up to version 2.16.1 allows remote attackers to manipulate the proxyHandler function, potentially leading to unauthorized internal resource access.","title":"ChatGPTNextWeb NextChat Server-Side Request Forgery Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-04-nextchat-ssrf/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-7177","version":"https://jsonfeed.org/version/1.1"}