Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck
CVE-2026-110234Elio through 1.13.0 Insecure Temporary File Creation in External Preview Command Capture
Medium 4.4
In plain English
A medium-severity security flaw in elio from elio-fm. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.1%top 96.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Elio through 1.13.0 contains an insecure temporary file vulnerability that allows local users to overwrite another user's files by pre-creating symbolic links at predictable capture paths. Attackers who know the victim's Elio process ID can plant a symlink so previewing media, fonts or archives truncates and overwrites victim-owned files.
Affected products (as reported)
Weakness: CWE-377 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
References
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/r1d_wQojfg third-party-advisory
- https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/external_commands.rs#L14-L47 technical-description
- https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/external_commands.rs#L92-L95 technical-description
- https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/archives/external_tools.rs#L30-L45 technical-description
- v1.13.0 Release Notes release-notes
- VulnCheck Advisory: Elio through 1.13.0 Insecure Temporary File Creation in External Preview Command Capture third-party-advisory