Vulnerability in Cobbr Covenant
CVE-2020-36911
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.121 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.108 · newest: 0.121 · change: +0.012
Affected products
- Cobbr Covenant — versions 0.1.3
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51141 (Exploit, exploit)
- cobbr.io/Covenant.html (product, Broken Link)
- github.com/cobbr/Covenant (Product, product)
- web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters (Exploit, technical-description, Third Party Advisory, exploit)
- github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb (Product, exploit)
- web.archive.org/web/20201013165001/https://twitter.com/cobbr_io/status/13160583… (vendor-advisory, patch, Issue Tracking)
- www.vulncheck.com/advisories/covenant-remote-code-execution-rce (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-36911?
- CVE-2020-36911 is a critical-severity vulnerability in Cobbr Covenant, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-01-13.
- How severe is CVE-2020-36911?
- Critical severity. CVSS v3 base score is 9.8 out of 10.