Description
Improper Certificate Validation vulnerability in Drupal Cloud allows Adversary in the Middle (AiTM). This issue affects Cloud versions: from 0.0.0 to 7.0.1.
Published: 2026-10-22
Score: 4.2 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch or Upgrade
AI Analysis

Impact

Improper certificate validation in Drupal Cloud allows an attacker positioned between a client and the service to provide a forged TLS certificate, which may enable a Man‑in‑the‑Middle attack. Because the backend does not check the certificate chain, a malicious actor can intercept or modify encrypted traffic. The CVE title suggests that such tampering could lead to remote code execution on the server; the description confirms the ability to hijack TLS exchanges, which is a prerequisite for code injection.

Affected Systems

Drupal Cloud releases from version 0.0.0 through 7.0.1 are affected. Any deployment of Drupal Cloud within this version range must be updated or patched to include proper certificate validation.

Risk and Exploitability

The EPSS score is <1%, indicating a very low but non‑zero probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. The CVSS score of 4.8 indicates a moderate severity rating. Exploitation requires an adversary to intercept traffic between a client and the Drupal Cloud service and to supply a forged or self‑signed certificate. This network‑based condition can be satisfied from almost any location that can observe the communication path, making the attack feasible remotely. The lack of certificate verification significantly increases the likelihood of successful exploitation once an attacker can interpose themselves. The potential impact includes data tampering and, as implied by the CVE title, possibly remote code execution.

Generated by OpenCVE AI on October 22, 2026 at 16:41 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Check Drupal’s security advisory for a patch or newer release that implements proper certificate validation.
  • Configure all clients and services interacting with Drupal Cloud to reject self‑signed or otherwise invalid TLS certificates.
  • Monitor network traffic for anomalous TLS handshakes or sudden certificate changes that could indicate a Man‑in‑the‑Middle attempt, and enforce endpoint authentication controls.

Generated by OpenCVE AI on October 22, 2026 at 16:41 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

References
History

Tue, 10 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}


Thu, 22 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Thu, 22 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Drupal
Drupal cloud
Vendors & Products Drupal
Drupal cloud

Thu, 22 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Description Improper Certificate Validation vulnerability in Drupal Cloud allows Adversary in the Middle (AiTM). This issue affects Cloud versions: from 0.0.0 to 7.0.1.
Title Cloud - Critical - Remote code execution - SA-CONTRIB-2026-176
Weaknesses CWE-295
References

cve-icon MITRE

Status: PUBLISHED

Assigner: drupal

Published:

Updated: 2026-10-22T14:44:38.627Z

Reserved: 2026-09-23T01:32:48.996Z

Link: CVE-2026-96375

cve-icon Vulnrichment

Updated: 2026-10-22T14:38:48.327Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-22T02:17:07.833

Modified: 2026-10-22T16:54:17.390

Link: CVE-2026-96375

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T16:45:09Z

Weaknesses
  • CWE-295

    Improper Certificate Validation