CVE-2026-62294
Flameshot: OCTOU symlink attack via predictable /tmp path in Flameshot "Open With"
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jul 15, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jul 13, 2026
Description
Flameshot is powerful yet simple to use screenshot software. Prior to 14.0.0, the Open With feature wrote screenshots to a predictable temporary path and followed symlinks, creating a time-of-check to time-of-use race that allowed a local unprivileged attacker on the same machine to pre-plant a symlink and cause Flameshot to write PNG data through it, overwriting any file the victim user could write. This issue is fixed in version 14.0.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
flameshotflameshot-org |
|
References
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