CVE-2025-35432: thorium DoS — Fix

Description

CISA Thorium does not rate limit requests to send account verification email messages. A remote unauthenticated attacker can send unlimited messages to a user who is pending verification. Fixed in 1.1.1 by adding a rate limit set by default to 10 minutes.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
cisa	thorium	All

References

Advisories & Patches

https://github.com/cisagov/thorium/commit/7c94a0b9bc2dc55e0c307360452f348bac06820c#diff-bf9baa11b76cd169902a976bd17a5a6ee95a4098b2d3d150ba7d8f85b7e21dc9R281-R334 https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json

Other References

https://github.com/cisagov/thorium/releases/tag/1.1.1 https://www.cve.org/CVERecord?id=CVE-2025-35432

Frequently Asked Questions

What is CVE-2025-35432? +

CISA Thorium does not rate limit requests to send account verification email messages. A remote unauthenticated attacker can send unlimited messages to a user who is pending verification. Fixed in 1.1.1 by adding a rate limit set by default to 10 minutes. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-35432? +

CVE-2025-35432 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-35432? +

CVE-2025-35432 affects products from cisa, specifically: thorium. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-35432? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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