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Vulnerability record · CVE-2025-65318 · published 16 December 2025

CVE-2025-65318: Canarymail canary mail vulnerability

Canarymail · Canary Mail

When using the attachment interaction functionality, Canary Mail 5.1.40 and below saves documents to a file system without a Mark-of-the-Web tag, which allows attackers to bypass the built-in file protection mechanisms of both Windows OS and third-party software.

9.1 CVSS 3.1 Critical EPSS 0.56% · top 55.7% CWE-693 · CWE-693
9.1CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 3 tagged exploit
5 Jul 2026Last modified by NVD

Description

When using the attachment interaction functionality, Canary Mail 5.1.40 and below saves documents to a file system without a Mark-of-the-Web tag, which allows attackers to bypass the built-in file protection mechanisms of both Windows OS and third-party software.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://drive.google.com/file/d/14wrTzvcLPfFsWmy-SAtDwwZKKPssBsx5/view Exploit
https://github.com/bbaboha/CVE-2025-65318-and-CVE-2025-65319 ExploitThird Party Advisory
https://github.com/nickvourd/RTI-Toolkit Not Applicable
https://github.com/bbaboha/CVE-2025-65318-and-CVE-2025-65319 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-65318), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.