CVE Explorer
CVE-2026-35355
The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://github.com/uutils","defaultStatus":"unaffected","packageName":"coreutils","platforms":["Linux","Unix","macOS"],"product":"coreutils","repo":"https://github.com/uutils/coreutils","vendor":"Uutils","versions":[{"lessThan":"0.6.0","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-367","description":"CWE-367: Time-of-Check Time-of-Use (TOCTOU) Race Condition","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["issue-tracking","patch"],"url":"https://github.com/uutils/coreutils/pull/10067"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/uutils/coreutils/pull/10067"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://github.com/uutils/coreutils/releases/tag/0.6.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:eb078509f9477e5491d665aaa79efd48a38752c4922e3084e5a262343797e58c · sha256:7f5d1f300ee94222… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.