PT-2026-34492 · Unknown · Uutils Coreutils

Zellic · Published 2026-04-22 · Updated 2026-04-23 · CVE-2026-35356

Positive Technologies (AI Summary)

CVSS v3.1

6.3

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Name of the Vulnerable Software and Affected Versions uutils coreutils (affected versions not specified)

Description A Time-of-Check to Time-of-Use (TOCTOU) issue exists in the install utility when using the '-D' flag. The command creates parent directories and then performs a second path resolution to create the target file, without anchoring either process to a directory file descriptor. An attacker with concurrent write access can replace a path component with a symbolic link between these operations, redirecting the privileged write to an arbitrary file system location. TOCTOU is a race condition where a system resource is modified between the time it is checked and the time it is used.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2026-35356

GHSA-M26V-HJQ3-X245

Affected Products

Uutils Coreutils

References · 12

• https://github.com/uutils/coreutils/pull/10140 · Patch
• https://github.com/uutils/coreutils/releases/tag/0.7.0 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-35356 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-35356 · Security Note
• https://osv.dev/vulnerability/GHSA-m26v-hjq3-x245 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-35356 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35356 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-35356 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-35356 · Vendor Advisory
• https://github.com/uutils/coreutils/commit/0c41299975f3c1e21cf5ca968d42cad55ceb42a1 · Note
• https://github.com/uutils/coreutils · Note
• https://twitter.com/CVEnew/status/2047012098627260790 · Twitter Post