What’s Vulnerable › Vulnerabilities

CVE-2020-36911: Covenant 0.5 - Remote Code Execution (RCE)

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-13 · updated 2026-06-17
• Weakness: CWE-798

Description

Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system.

Affected products

• cobbr Covenant: from 0.1.3 through 0.5

References

• https://cobbr.io/Covenant.html
• https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb
• https://github.com/cobbr/Covenant
• https://web.archive.org/web/20201013165001/https://twitter.com/cobbr_io/status/1316058367161401344
• https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters
• https://www.exploit-db.com/exploits/51141
• https://www.vulncheck.com/advisories/covenant-remote-code-execution-rce
• https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb
• https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters

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