Cyera

Public Exploit Released: Critical n8n Flaw CVE-2026-21858 Exposes 100k Servers

Public Exploit Released: Critical n8n Flaw CVE-2026-21858 Exposes 100k Servers

Do Son January 8, 2026

Alert: Public exploit released for n8n CVE-2026-21858 (CVSS 10.0). Unauthenticated attackers can seize full control. Update to v1.121.0 now.

CVE-2024-58406CVSS 8.7
Huatian Dynamic OA8000 collaborative office system contains an unauthenticated path traversal vulnerability in /OAapp/jsp/trace/ntkodownload.jsp, where the filename request...
Watchtower Verified📅 Updated: Nov 13, 2026
CVE-2026-114713CVSS 8.6
The labeled-response module in UnrealIRCd 6.0.0 before 6.2.7.1 does not escape the IRCv3 "label" message tag when echoing...
CISA KEV📅 Added to KEV: Nov 13, 2026
CVE-2026-123039CVSS 7.8
The Gaia OS DynamicCLI daemon runs as root and listens on a world-writable local socket (/tmp/dynamic_socket) without authenticating...
CISA KEV📅 Added to KEV: Nov 13, 2026
CVE-2026-20320CVSS 7.5
A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote...
CISA KEV📅 Added to KEV: Nov 10, 2026
CVE-2026-111793CVSS 4.3
Openwave Webtop Media Transcoder does not enforce administrator-defined file type restrictions to restrict the file-types to be converted....
CISA KEV📅 Added to KEV: Nov 10, 2026
CVE-2026-111560CVSS 8.6
Improper neutralization of shell metacharacters in the timezone configuration field in certain Barracuda appliance products using common Barracuda...
CISA KEV📅 Added to KEV: Nov 10, 2026
CVE-2026-116606CVSS 9.3
An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to...
CISA KEV📅 Added to KEV: Nov 10, 2026
CVE-2026-125350
Use after free in XML. Reported by anonymous on 2026-11-06. Google is aware that an exploit for CVE-2026-125350...
CISA KEV📅 Added to KEV: Nov 10, 2026

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CVE-2026-129349CVSS 9.1
When authentication caching is enabled on DefaultLdapRealm, after a user logs in successfully once, subsequent logins for that...
📅 Updated: Nov 14, 2026
CVE-2026-55335CVSS 9.8
In multiple locations, there is a possible use-after-free due to a logic error in the code. This could...
📅 Updated: Nov 14, 2026
CVE-2026-12591CVSS 9.9
Zohocorp ManageEngine M365 Manager Plus versions below 4818 is affected by an authenticated technician may exploit insufficient permission validation in the delegated administration...
📅 Updated: Nov 14, 2026
CVE-2026-12507CVSS 9.1
Zohocorp ManageEngine AssetExplorer versions below 7860, ServiceDesk Plus versions below 15290, ServiceDesk Plus MSP versions below 15150, and...
📅 Updated: Nov 14, 2026
CVE-2026-126229CVSS 9.1
A authorization bypass through user-controlled key vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer...
📅 Updated: Nov 14, 2026
CVE-2026-126261CVSS 9.8
A improper authorization vulnerability in Fortinet FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.5, FortiManager 7.2.0...
📅 Updated: Nov 14, 2026
CVE-2026-126170CVSS 9.8
A improper encoding or escaping of output vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.2, FortiAnalyzer 7.6.0 through 7.6.7,...
📅 Updated: Nov 14, 2026
CVE-2026-126173CVSS 9.8
The AutomatorWP Pro plugin for WordPress' webhook addon is vulnerable to authorization bypass in all versions up to,...
📅 Updated: Nov 14, 2026