uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with elevated privileges when ownership change operations fail on capability-restricted systems.
CVE-2026-93658
HIGHPre-NVD 7.07.0—Trending — 3 sources updated this weekElevated
EchelonGraph scoreHIGH confidence
Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. a secondary CVSS source baseline 7.0; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.0
- EG Score
- 7.0(high)
- EG Risk
- 48(Track*)EG Risk 48/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity70% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 0%
- EPSS %ILE
- 5%
- KEV
- Not listed
Published
September 18, 2026
Last Modified
September 18, 2026
Advisory Details (6)
Auto-updated Sep 18, 2026🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit.
generic
uutils coreutils 0.0.18 before 0.10.0 Privilege Escalation via setuid | Advisories | VulnCheck
https://www.vulncheck.com/advisories/uutils-coreutils-0.0.18-before-0.10.0-privilege-escalation-via-setuidgeneric
GitHub - uutils/coreutils: Cross-platform Rust rewrite of the GNU coreutils · GitHub
https://github.com/uutils/coreutilsgeneric
coreutils/src/uu/install/src/install.rs at 0.9.0 · uutils/coreutils · GitHub
https://github.com/uutils/coreutils/blob/0.9.0/src/uu/install/src/install.rsgithub_commit
commit 7c87ab04fee8 (uutils/coreutils)
Fix landed in uutils/coreutils commit 7c87ab04fee8 — awaiting tagged release
https://github.com/uutils/coreutils/commit/7c87ab04fee8e52d989fb2625568a3eeda1b1f55github_pr
install: finalize ownership before mode, and skip the mode if chown fails
Fix merged in uutils/coreutils PR #13629 on 2026-07-31 — awaiting tagged release
https://github.com/uutils/coreutils/pull/13629github Patch Available🟡 PoC Available
install can leave a root-owned setuid artifact when ownership finalization fails · Advisory · uutils/coreutils · GitHub
https://github.com/uutils/coreutils/security/advisories/GHSA-cgg3-923w-v53mVendor Advisories for CVE-2026-93658(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-19 05:52 UTCGHSA enrichment
- 2026-09-18 17:26 UTCEG score recompute
- 2026-09-18 17:26 UTCGHSA enrichment
- 2026-09-18 16:54 UTCEG score recompute
- 2026-09-18 16:54 UTCGHSA enrichment
- 2026-09-18 15:24 UTCEG score recompute
- 2026-09-18 14:34 UTCEG score recompute
- 2026-09-18 14:34 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-281
Frequently asked(5)
What is CVE-2026-93658?
CVE-2026-93658 is a high vulnerability published on September 18, 2026. uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with…
When was CVE-2026-93658 disclosed?
CVE-2026-93658 was first published in the National Vulnerability Database on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93658 actively exploited?
CVE-2026-93658 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.2% of all scored CVEs.
What is the CVSS score of CVE-2026-93658?
CVE-2026-93658 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-93658?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93658, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93658
Is Your Infrastructure Affected by CVE-2026-93658?
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