CVE-2026-113352
uTox through 0.18.1 Path Traversal via Auto-Accepted File Transfers
- State
- Published
- Severity
- 7.7 High
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 20, 2026
Description
uTox through 0.18.1 contains a path traversal vulnerability that allows Tox friends to write arbitrary files by sending absolute or ../ file names to victims with auto-accept enabled. Attackers can overwrite shell startup files or plant crafted .ftinfo resume records that ft_find_resumeable() loads, abusing FILE pointers to write /proc/self/mem and execute code.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.7 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
uToxuTox |
|
References
- https://github.com/uTox/uTox/issues/1587issue-tracking
- https://github.com/uTox/uTox/pull/1602issue-trackingpatch
- https://github.com/uTox/uTox/pull/1603issue-trackingpatch
- https://github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/xlib/filesys.c#L191-L214technical-description
- https://github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/file_transfers.c#L249-L290technical-description
- https://github.com/uTox/uToxproduct
- VulnCheck Advisory: uTox through 0.18.1 Path Traversal via Auto-Accepted File Transfersthird-party-advisory
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