CVE-2026-62294

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.

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Weakness Type (CWE)

CWE-362 CWE-362

CWE-377 CWE-377

References

Other References

https://github.com/flameshot-org/flameshot/commit/936716b8d8b7052be461c3d5e2f88492b6eb3b96 https://github.com/flameshot-org/flameshot/pull/4716 https://github.com/flameshot-org/flameshot/releases/tag/v14.0.0 https://github.com/flameshot-org/flameshot/security/advisories/GHSA-fqqf-4rj8-c392

Frequently Asked Questions

What is CVE-2026-62294? +

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.

How do I check if I'm vulnerable to CVE-2026-62294? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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