CVE-2025-35430
CISA Thorium insecure downloaded file path validation
Description
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.
INFO
Published Date :
Sept. 17, 2025, 5:15 p.m.
Last Modified :
Oct. 8, 2025, 7:01 p.m.
Remotely Exploit :
Yes !
Source :
9119a7d8-5eab-497f-8521-727c672e3725
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 9119a7d8-5eab-497f-8521-727c672e3725 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 9119a7d8-5eab-497f-8521-727c672e3725 |
Solution
- Update CISA Thorium to version 1.1.2.
- Verify downloaded file paths are validated.
- Restrict file system permissions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-35430.
| URL | Resource |
|---|---|
| https://github.com/cisagov/thorium/blob/main/api/src/utils/bounder.rs#L120-L158 | Product |
| https://github.com/cisagov/thorium/releases/tag/1.1.2 | Release Notes |
| https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json | Vendor Advisory |
| https://www.cve.org/CVERecord?id=CVE-2025-35430 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-35430 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-35430
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-35430 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-35430 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 08, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:cisa:thorium:*:*:*:*:*:*:*:* versions from (including) 1.0.0 up to (excluding) 1.1.2 Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://github.com/cisagov/thorium/blob/main/api/src/utils/bounder.rs#L120-L158 Types: Product Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://github.com/cisagov/thorium/releases/tag/1.1.2 Types: Release Notes Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json Types: Vendor Advisory Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://www.cve.org/CVERecord?id=CVE-2025-35430 Types: Third Party Advisory -
New CVE Received by 9119a7d8-5eab-497f-8521-727c672e3725
Sep. 17, 2025
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N Added CWE CWE-22 Added Reference https://github.com/cisagov/thorium/blob/main/api/src/utils/bounder.rs#L120-L158 Added Reference https://github.com/cisagov/thorium/releases/tag/1.1.2 Added Reference https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json Added Reference https://www.cve.org/CVERecord?id=CVE-2025-35430