Cyber Resilience

CVE-2025-68637

Apache Uniffle ≤ 0.10.0

Published
07 January 2026
Modified
16 January 2026
Patch / advisory
View advisory
CVSS Score v3.1 9.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0022 13th percentile
Risk Priority 65 floored blend · peak EPSS

Summary

CVE-2025-68637 is a critical-severity Improper Validation of Certificate with Host Mismatch (CWE-297) vulnerability in Apache Uniffle. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Adversary-in-the-Middle (T1557); ranked at the 13th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-23 (Session Authenticity) and SC-8 (Transmission Confidentiality and Integrity) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-68637 is a high-severity vulnerability in the Uniffle HTTP client, which is configured by default to trust all SSL certificates and disable hostname verification. This insecure setup exposes REST API communications between the Uniffle CLI/client and the Uniffle Coordinator service to man-in-the-middle (MITM) attacks. The issue affects all versions prior to 0.10.0 and is classified under CWE-297 (Improper Validation of Certificate with Host Mismatch), with a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attackers with network access to the communication path can exploit this vulnerability without privileges or user interaction. By performing an MITM attack, they can intercept, read, and modify sensitive data in transit, achieving high impacts on confidentiality and integrity, though availability remains unaffected.

Advisories recommend upgrading to Uniffle version 0.10.0, which addresses the issue by correcting the SSL configuration. Additional details are available in the Apache mailing list announcement at https://lists.apache.org/thread/trvdd11hmpbjno3t8rc9okr4t036ox2v and the OSS-Security mailing list at http://www.openwall.com/lists/oss-security/2025/12/27/2.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

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…

more

issue affects all versions from before 0.10.0. Users are recommended to upgrade to version 0.10.0, which fixes the issue.

CWE(s)
CWE-297

Related Threats

MITRE ATT&CK Enterprise Techniques

T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
attack.mitre.org →
T1557.001 Name Resolution Poisoning and SMB Relay Credential Access
By responding to LLMNR/NBT-NS/mDNS network traffic, adversaries may spoof an authoritative source for name resolution to force communication with an adversary controlled system.
attack.mitre.org →
T1557.002 ARP Cache Poisoning Credential Access
Adversaries may poison Address Resolution Protocol (ARP) caches to position themselves between the communication of two or more networked devices.
attack.mitre.org →
T1557.003 DHCP Spoofing Credential Access
Adversaries may redirect network traffic to adversary-owned systems by spoofing Dynamic Host Configuration Protocol (DHCP) traffic and acting as a malicious DHCP server on the victim network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-48144Same vendor: Apache
CVE-2026-35563Same vendor: Apache
CVE-2025-59060Same vendor: Apache
CVE-2026-48145Same vendor: Apache
CVE-2025-68161Same vendor: Apache
CVE-2026-34477Same vendor: Apache
CVE-2026-43869Same vendor: Apache
CVE-2026-23904Same vendor: Apache
CVE-2026-44046Same vendor: Apache
CVE-2023-39441Same vendor: Apache

Affected Assets

apache
uniffle
≤ 0.10.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V17.2.8

Mitigating Controls (NIST 800-53 r5) AI

SC-23 Session Authenticity good match

Protecting session authenticity structurally requires proper certificate validation to bind the presented certificate to the intended host.

SC-8 Transmission Confidentiality and Integrity good match

Requiring confidentiality and integrity of transmitted data necessitates correct TLS certificate validation with host-name checking.

SA-8 Security and Privacy Engineering Principles partial match

Security engineering principles require correct implementation of certificate validation (including hostname matching) when cryptography is used.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.DS-02 mostly match
prevents

Protecting data-in-transit integrity depends on proper certificate validation to prevent MITM.

PR.PS-06 mostly match
prevents

Secure development practices include coding correct certificate validation logic.

PR.AA-03 partial match
prevents

Server/service authentication via certificates directly requires correct host validation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect missing certificate validation and host-mismatch checks.

A.8.20 Networks security partial match
degrades

Network security controls include certificate validation and host-name verification to prevent man-in-the-middle attacks.

A.8.21 Security of network services partial match
degrades

Security of network services requires proper TLS configuration and certificate validation for service endpoints.

A.8.24 Use of cryptography partial match
prevents

Use of cryptography mandates correct implementation of certificate validation and hostname verification.

A.8.26 Application security requirements partial match
prevents

Application security requirements include secure communication and certificate validation for external services.

A.8.27 Secure system architecture and engineering principles partial match
mitigates

Secure system architecture principles require proper certificate validation to protect communications.

References