Bug 2501081 - CVE-2026-62294 flameshot: Flameshot: Local file overwrite via time-of-check to time-of-use race condition [fedora-all]
Summary: CVE-2026-62294 flameshot: Flameshot: Local file overwrite via time-of-check t...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: flameshot
Version: 45
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Shawn W Dunn
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["5fd750ca-2559-41a9-be4d-e...
Depends On:
Blocks: CVE-2026-62294
TreeView+ depends on / blocked
 
Reported: 2026-07-15 19:19 UTC by Ganesh
Modified: 2026-10-07 16:11 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-10-07 16:11:24 UTC
Type: ---
Embargoed:


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Description Ganesh 2026-07-15 19:19:33 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Aoife Moloney 2026-08-17 15:20:38 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Shawn W Dunn 2026-10-07 16:11:24 UTC
Rawhide, F45 and F44 already have the patched 14.x release shipping, with F43 scheduled for EOL next month, I'm closing.


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