What is CVE-2022-31028?

CVE-2022-31028 is a high-severity vulnerability in Minio, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-06-07.

How severe is CVE-2022-31028?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-31028 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Minio

CVE-2022-31028

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.

Vulnerability class: DoS (Denial of Service)

Published 2022-06-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.030 (86.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Minio — versions >= RELEASE.2019-09-25T18-25-51Z, < RELEASE.2022-06-02T02-11-04Z

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

References

github.com/minio/minio/security/advisories/GHSA-qrpr-r3pw-f636 (Third Party Advisory)
github.com/minio/minio/pull/14995 (Patch, Third Party Advisory)
gist.github.com/harshavardhana/2d00e6f909054d2d2524c71485ad02e1 (Exploit, Third Party Advisory)
github.com/minio/minio/releases/tag/RELEASE.2022-06-03T01-40-53Z (Third Party Advisory)

Frequently asked questions

What is CVE-2022-31028?: CVE-2022-31028 is a high-severity vulnerability in Minio, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-06-07.
How severe is CVE-2022-31028?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-31028 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.