---
title: "CVE-2019-20933\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-20933?format=md
keywords: index, follow
---

# CVE-2019-20933

Publication date 19 November 2020

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2019-20933?format=md#impact-score)

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## Description

InfluxDB before 1.7.6 has an authentication bypass vulnerability in the
authenticate function in services/httpd/handler.go because a JWT token may
have an empty SharedSecret (aka shared secret).

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| influxdb | 22.04 LTS jammy | Fixed 1.6.7~rc0-1 |
| 21.10 impish | Fixed 1.6.7~rc0-1 |
| 21.04 hirsute | Fixed 1.6.7~rc0-1 |
| 20.10 groovy | Ignored end of life |
| 20.04 LTS focal | Fixed 1.6.4-1+deb10u1build0.20.04.1 |
| 18.04 LTS bionic | Fixed 1.1.1+dfsg1-4+deb9u1ubuntu1 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20933)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-20933)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-20933)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-20933)

### Related Ubuntu Security Notices (USN)

+ [USN-5451-1](https://usn.ubuntu.com/USN-5451-1)
+ InfluxDB vulnerability
+ 31 May 2022

### Other references

* <https://github.com/influxdata/influxdb/commit/761b557315ff9c1642cf3b0e5797cd3d983a24c0>
* <https://github.com/influxdata/influxdb/issues/12927>
* <https://github.com/influxdata/influxdb/compare/v1.7.5...v1.7.6>
* <https://www.cve.org/CVERecord?id=CVE-2019-20933>