What is CVE-2025-68637?

CVE-2025-68637 is a critical-severity vulnerability in Apache Uniffle, classified under Improper Validation of Certificate with Host Mismatch. CVSS score: 9.1/10. Published 2026-01-07.

How severe is CVE-2025-68637?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Apache Uniffle

CVE-2025-68637

The Uniffle HTTP client is configured to trust all SSL certificates and disables hostname verification by default. This insecure configuration exposes all REST API communication between the Uniffle CLI/client and the Uniffle Coordinator service to potential Man-in-the-Middle (MITM) attacks. This issue affects all versions from before 0.10.0. Users are recommended to upgrade to version 0.10.0, which fixes the issue.

Published 2026-01-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Apache Uniffle
Apache Software Foundation Uniffle — versions 0

Weakness classification (CWE)

CWE-297 — Improper Validation of Certificate with Host Mismatch

References

lists.apache.org/thread/trvdd11hmpbjno3t8rc9okr4t036ox2v (vendor-advisory, Mailing List, Issue Tracking, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2025-68637?: CVE-2025-68637 is a critical-severity vulnerability in Apache Uniffle, classified under Improper Validation of Certificate with Host Mismatch. CVSS score: 9.1/10. Published 2026-01-07.
How severe is CVE-2025-68637?: Critical severity. CVSS v3 base score is 9.1 out of 10.