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CVE-2026-105816

HIGH 8

Published 2026-10-07 · Last modified 2026-10-09

Vault and Vault Enterprise did not consistently verify that stored plugin catalog entries reference binaries within the configured plugin directory. When Vault uses Shamir seals and has an external plugin directory configured, a privileged operator able to restore an Integrated Storage (Raft) snapshot may be able to execute arbitrary code on the Vault host. This vulnerability (CVE-2026-105816) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.

ELEVATED IMPACT

Severe if exploited (CVSS 8), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 27th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

8CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires an admin / high-privilege account
  • ✓User interaction: No user interaction needed
  • ⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Hashicorp

Products Vault Vault Enterprise

Weakness (CWE)

  • CWE-22: : Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References and research data (JSON)

Vendor product assessments

  • odf4/mcg-cli-rhel9 as a component of Red Hat Openshift Data Foundation 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/mcg-cli-rhel9@sha256:ae5603010d77a6e24154018613fb821ebda131ab53d53cd21275f03d86d5bcf7?repository_url=registry.redhat.io/odf4/mcg-cli-rhel9

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • none available: Affected
    Red Hat · CVE-2026-105816 · Updated 2026-10-16T09:44:00+00:00
  • odf4/mcg-rhel9-operator as a component of Red Hat Openshift Data Foundation 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/mcg-rhel9-operator@sha256:02c95b350208e7c1594b89147e17949f2654988b260291afedc0798b88f13904?repository_url=registry.redhat.io/odf4/mcg-rhel9-operator

    • workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    • none available: Affected
    Red Hat · CVE-2026-105816 · Updated 2026-10-16T09:44:00+00:00
  • odf4/cephcsi-rhel9 as a component of Red Hat Openshift Data Foundation 4 · known not affected

    Vendor assessment for this product only.

    Reason: component not present

    pkg:oci/cephcsi-rhel9@sha256:cbca7bec67b8330ac41d5678bf7011b84b615b13acefda33d56e22f3a1952905?repository_url=registry.redhat.io/odf4/cephcsi-rhel9

    Red Hat · CVE-2026-105816 · Updated 2026-10-16T09:44:00+00:00

All CVSS metrics

  • HIGH 8 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
  • HIGH 8 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS