{"vulnerability": "cve-2020-26217", "sightings": [{"uuid": "25db6987-6e65-4eb6-b86f-2c32c7ff2922", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/61268", "content": "GitHub\u76d1\u63a7\u6d88\u606f\u63d0\u9192\uff01\uff01\uff01 \n\n\u66f4\u65b0\u4e86\uff1a\u53cd\u5e8f\u5217\u5316\n\u63cf\u8ff0\uff1aCVE-2020-26217 XStream\u53cd\u5e8f\u5217\u5316\u7684poc\nURL\uff1ahttps://github.com/Kairo-one/CVE-2020-26217-XStream\n\n\u6807\u7b7e\uff1a#\u53cd\u5e8f\u5217\u5316", "creation_timestamp": "2025-12-01T09:29:25.000000Z"}, {"uuid": "c473bffd-5002-442d-9e0f-608c8946a6b1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "Telegram/T3kChWKGDz1qPZSpta-K5xRrbcgjJUvh35EVMIa5wgYdoLI", "content": "", "creation_timestamp": "2025-12-01T09:00:05.000000Z"}, {"uuid": "e2c60116-2627-409d-8376-1aa437d8d343", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/cKure/2849", "content": "\u25a0\u25a0\u25a0\u25a0\u25a1 CVE-2020-26217: XStream can be used for Remote Code Execution.\n\nhttps://x-stream.github.io/CVE-2020-26217.html", "creation_timestamp": "2020-11-16T17:08:15.000000Z"}, {"uuid": "7d976833-cad6-4f49-86dc-ea59b0dbbe2c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2917", "content": "#Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html", "creation_timestamp": "2021-03-16T11:01:03.000000Z"}, {"uuid": "87a8a6a8-51c6-42bc-8eef-8a6ef9bf02bb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2119", "content": "CVE-2020-26217:\nXStream <=1.4.13 can be used for RCE (PoC)\nhttps://x-stream.github.io/CVE-2020-26217.html\nCVE-2020-13942:\nApache Unomi - RCE Vulnerabilities (PoCs)\nhttps://securityboulevard.com/2020/11/apache-unomi-cve-2020-13942-rce-vulnerabilities-discovered\n+ https://github.com/eugenebmx/CVE-2020-13942", "creation_timestamp": "2020-11-23T03:53:17.000000Z"}, {"uuid": "c10b4263-d5a8-4171-8f73-630e32d38962", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "seen", "source": "https://t.me/cibsecurity/16410", "content": "\u203c CVE-2020-26217 \u203c\n\nXStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-17T00:44:05.000000Z"}, {"uuid": "ef90cc5a-23f5-485a-afcf-3dce9e06daba", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "seen", "source": "https://t.me/cissp/2547", "content": "Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html\n\nVM Detection Tricks\nPart 1 - Physical memory resource maps\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-1-physical-memory-resource-maps\nPart 2 - Driver Thread Fingerprinting\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-2-driver-thread-fingerprinting\n]-> HyperV Driver Thread Detection PoC:\nhttps://github.com/nettitude/hyperv-driver-thread-detection-poc\n\nWhitepaper\n\"Kusarigama: Demonstrating non-modular chained attacks for malware persistence\", 2020.\nhttps://github.com/vxunderground/VXUG-Papers/tree/main/The%20Persistence%20Series/Kusarigama", "creation_timestamp": "2026-09-01T17:00:58.776252Z"}, {"uuid": "a1a17553-fef2-4167-819b-4bd7f737c737", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "seen", "source": "https://t.me/cissp/2547", "content": "Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html\n\nVM Detection Tricks\nPart 1 - Physical memory resource maps\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-1-physical-memory-resource-maps\nPart 2 - Driver Thread Fingerprinting\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-2-driver-thread-fingerprinting\n]-> HyperV Driver Thread Detection PoC:\nhttps://github.com/nettitude/hyperv-driver-thread-detection-poc\n\nWhitepaper\n\"Kusarigama: Demonstrating non-modular chained attacks for malware persistence\", 2020.\nhttps://github.com/vxunderground/VXUG-Papers/tree/main/The%20Persistence%20Series/Kusarigama", "creation_timestamp": "2026-09-02T01:04:49.489702Z"}, {"uuid": "2eb33efb-0067-4b57-91de-3030ce071ccb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/cissp/2547", "content": "Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html\n\nVM Detection Tricks\nPart 1 - Physical memory resource maps\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-1-physical-memory-resource-maps\nPart 2 - Driver Thread Fingerprinting\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-2-driver-thread-fingerprinting\n]-> HyperV Driver Thread Detection PoC:\nhttps://github.com/nettitude/hyperv-driver-thread-detection-poc\n\nWhitepaper\n\"Kusarigama: Demonstrating non-modular chained attacks for malware persistence\", 2020.\nhttps://github.com/vxunderground/VXUG-Papers/tree/main/The%20Persistence%20Series/Kusarigama", "creation_timestamp": "2026-09-11T15:00:04.794617Z"}, {"uuid": "5c78082b-a095-4f82-bfce-b0611d52aa36", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/cissp/2547", "content": "Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html\n\nVM Detection Tricks\nPart 1 - Physical memory resource maps\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-1-physical-memory-resource-maps\nPart 2 - Driver Thread Fingerprinting\nhttps://labs.nettitude.com/blog/vm-detection-tricks-part-2-driver-thread-fingerprinting\n]-> HyperV Driver Thread Detection PoC:\nhttps://github.com/nettitude/hyperv-driver-thread-detection-poc\n\nWhitepaper\n\"Kusarigama: Demonstrating non-modular chained attacks for malware persistence\", 2020.\nhttps://github.com/vxunderground/VXUG-Papers/tree/main/The%20Persistence%20Series/Kusarigama", "creation_timestamp": "2026-09-12T00:00:38.146501Z"}]}