Vulnerability · Published Dec 11, 2025 · Assigned by GitHub_M
CVE-2025-67720Pyrofork has a Path Traversal in download_media Method
Medium 6.5
In plain English
A medium-severity path traversal in pyrofork from Mayuri-Chan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Pyrofork is a modern, asynchronous MTProto API framework. Versions 2.3.68 and earlier do not properly sanitize filenames received from Telegram messages in the download_media method before using them in file path construction. When downloading media, if the user does not specify a custom filename (which is the common/default usage), the method falls back to using the file_name attribute from the media object. The attribute originates from Telegram's DocumentAttributeFilename and is controlled by the message sender. This issue is fixed in version 2.3.69.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | pyrofork | 2.3.69 | GHSA-6h2f-wjhf-4wjx |
| PyPI | pyrofork | 2.3.69 | PYSEC-2026-1841 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mayuri-Chan | pyrofork | < 2.3.69 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N