PatchTheCVECVE-2026-35356: A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the install utility of uutils coreutils when u
CVE-2026-35356 is a medium-severity flaw (CVSS 6.3) affecting coreutils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the install utility of uutils coreutils when using the -D flag. The command creates parent directories and subsequently performs a second path resolution to create the target file, neither of which is anchored 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
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.3 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-367 |
| Published | 2026-04-22 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-35356?
coreutils: upgrade to 0.7.0. Exact commands for each OS are on this page.
Is CVE-2026-35356 being exploited?
CVE-2026-35356 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-35356 affect?
CVE-2026-35356 affects coreutils. Severity is medium (CVSS 6.3). A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the install utility of uutils coreutils when using the -D flag. The command creates parent directories and subsequently performs a second path resolution to create the target f
How urgent is CVE-2026-35356?
Priority 22/100. No elevated risk signals yet.
Related CVEs
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- CVE-2026-35345 MEDIUM 5.3 MITIGATE A vulnerability in the tail utility of uutils coreutils allows for the exfiltration of sensitive file contents
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