Loading vulnerability…
CVE-2026-84115 is a reported improper privilege management vulnerability in the JWT refresh-token handling functionality of Cleo Harmony through version 5.8.1.10. Crafted manipulation of the HTTP Bearer authorization argument can cause insufficient enforcement of the privileges associated with a token or session, permitting a remote requester to obtain privileges beyond those intended.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity remote privilege-escalation vulnerability in Cleo Harmony's JWT Refresh Token Handler. Manipulated Bearer tokens sent to the /api/connections endpoint can result in improperly granted elevated permissions.
A high-severity remote privilege-escalation vulnerability in Cleo Harmony's JWT Refresh Token Handler. Manipulated Bearer tokens sent to the /api/connections endpoint can improperly receive elevated permissions.
An authentication-bypass and privilege-escalation vulnerability in Cleo Harmony's JWT refresh-token handling. Remote attackers can manipulate bearer-token arguments in HTTP headers to bypass access controls, potentially gaining persistent access, elevated privileges, and lateral movement opportunities.
A remotely exploitable improper privilege-management vulnerability in Cleo Harmony's JWT Refresh Token Handler at /api/connections. Manipulation of the Bearer argument can result in improper privilege management.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.