Skip to main content
VulnerabilityPublished

Uucore: uutils coreutils: cp/install/mv/ln --suffix alone does not enable backup mode (silent data loss vs GNU)

Affects uucoreSource GCVE Database

0

CVSS 7.0 High : upgrade to 0.6.0 soon.

Data as of 8 Jul 2026, 13:46 UTC

CVSS 4.0 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.6.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

What to do

Upgrade uucore to 0.6.0.

Affected software

ProductAffectedFixed in
crates.iouucoreAffected
  • <0.6.0
Fixed in
  • 0.6.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available and was released in uucore version 0.6.0. Users should upgrade to version 0.6.0 or later to ensure that using --suffix alone correctly enables backup mode and prevents silent data loss. No additional mitigation is required beyond applying this official fix.

Description

The uutils coreutils utilities cp, install, mv, and ln have a backup mode behavior divergence from GNU coreutils. When only the --suffix option is used without --backup/-b, uutils does not enable backup mode, causing silent data loss by overwriting files without creating backups. GNU coreutils enables backup mode in this scenario, creating backup files. This issue affects versions of uucore prior to 0.6.0 and was fixed in version 0.6.0.

References

Community reviews

Loading reviews…