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CVE-2025-35430

Good to know:

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Date: September 17, 2025

CISA Thorium does not adequately validate the paths of downloaded files via 'download_ephemeral' and 'download_children'. A remote, authenticated attacker could access arbitrary files subject to file system permissions. Fixed in 1.1.2.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2025-35430
https://www.cve.org/CVERecord?id=CVE-2025-35430
https://github.com/cisagov/thorium/releases/tag/1.1.2
https://github.com/cisagov/thorium/blob/main/api/src/utils/bounder.rs#L120-L158
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json
https://www.mend.io/vulnerability-database/CVE-2025-35430

Severity Score

Weakness Type (CWE)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

Top Fix

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Upgrade Version

Upgrade to version https://github.com/cisagov/thorium.git - 1.1.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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