A vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files. When mkfifo fails to create a FIFO because a file already exists at the target path, it fails to terminate the operation f…
Exact source revision recorded 1 Nov 2026 06:08:33 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-24969
PublishedA vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files. When mkfifo fails to create a FIFO because a file already exists at the target path, it fails to terminate the operation for that path and continues to execute a follow-up set_permissions call. This results in the existing file's permissions being changed to the default mode (often 644 after umask), potentially exposing sensitive files such as SSH private keys to other users on the system.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Apr 22, 2026, 4:07:39 PM
dateUpdated: Apr 24, 2026, 1:43:36 PM
- Source published
- Apr 22, 2026, 4:07:39 PM (timezone not stated)
- Source modified
- Apr 24, 2026, 1:43:36 PM (timezone not stated)
- Observed here
- 1 Nov 2026 06:08:33 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
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EUVD CVSS 3.1 · 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N