Description
A vulnerability in Thales CERT "Suspicious" application =< 1.3.4 allows a remote and unauthenticated attacker to execute arbitrary code and arbitrarily overwrite writable application files—including Python modules, configuration files, cron inputs, and runtime artifacts—leading to a persistent denial of service, the potential compromise of application secrets or integrations, and root-level execution inside the Django application container.
This vulnerability has been names "Matryoshka Mail".
Thales PSIRT
acknowledges and thanks

Lucien Doustaly (aka wlayzz) for discovering and reporting this issue.
Published: 2026-07-13
Score: 9.2 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to version v1.3.5

Tracking

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Advisories

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History

Mon, 13 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Thalesgroup
Thalesgroup cert Suspicious
Vendors & Products Thalesgroup
Thalesgroup cert Suspicious

Mon, 13 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 13 Jul 2026 10:00:00 +0000

Type Values Removed Values Added
Description A vulnerability in Thales CERT "Suspicious" application =< 1.3.4 allows a remote and unauthenticated attacker to execute arbitrary code and arbitrarily overwrite writable application files—including Python modules, configuration files, cron inputs, and runtime artifacts—leading to a persistent denial of service, the potential compromise of application secrets or integrations, and root-level execution inside the Django application container. This vulnerability has been names "Matryoshka Mail". Thales PSIRT acknowledges and thanks Lucien Doustaly (aka wlayzz) for discovering and reporting this issue.
Title Remote Code Execution vulnerability in "Suspicious" application
Weaknesses CWE-22
CWE-73
CWE-94
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Thalesgroup Cert Suspicious
cve-icon MITRE

Status: PUBLISHED

Assigner: THA-PSIRT

Published:

Updated: 2026-07-13T14:07:27.982Z

Reserved: 2026-06-23T15:40:38.489Z

Link: CVE-2026-13014

cve-icon Vulnrichment

Updated: 2026-07-13T14:07:14.800Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-13T14:37:54Z

Weaknesses