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NTAP-20261016-0020 — CVE-2026-4878 Libcap Vulnerability in NetApp Products

Published 2026-10-16 · Updated 2026-10-16 · Status: Interim · Exploitation: Public · Severity: MEDIUM 6.7 · ONTAP affected: No — other NetApp product

Official advisory: NTAP-20261016-0020 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · SolidFire / NetApp HCI · NetApp Console / BlueXP | other NetApp product | highest CVSS: 6.7

CVEs in this advisory

CVE-2026-4878 — MEDIUM · CVSS 6.7 · site index

What the CVE records say

CVE-2026-4878 — A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS).

Affected products

Active IQ Unified Manager for VMware vSphere
NetApp HCI Baseboard Management Controller (BMC) - H610S
NetApp Console Agent
NetApp Console Agent Container (mysql)
NetApp SolidFire & HCI Management Node
iNetApp SolidFire & HCI Storage Node (Element Software)

References

https://nvd.nist.gov/vuln/detail/CVE-2026-4878 ↗

What to do

Compare your installed product and version against the affected list above and the official advisory's affected-versions table.
Apply the fixed release named in the official advisory, or the documented workaround if no fix ships yet.
Limit management-plane exposure (BMC/management interfaces, web UIs, SNMP) until patched.
Track follow-ups in the site CVE index and the security RSS feed.