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CVE-2026-105816— Vault Vulnerable to Arbitrary Code Execution via Plugin Catalog Entries Restored From Raft Snapshots

Quick assessment

Affected
HashiCorp Vault
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vault 与 Vault Enterprise 未始终验证已存储的插件目录条目是否引用了配置插件目录中的二进制文件。当 Vault 使用 Shamir 密钥分片（Shamir seals）且配置了外部插件目录时，拥有特权的操作员若能够恢复集成存储（Raft）的快照，则可能在 Vault 主机上执行任意代码。该漏洞（CVE-2026-105816）已在以下版本中修复：Vault Community Edition 2.1.2，以及 Vault Enterprise 2.1.2、1.21.12、1.20.17 和 1

CVSS 8.0 · High

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-105816

Vulnerability Information
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Vulnerability Title
Vault Vulnerable to Arbitrary Code Execution via Plugin Catalog Entries Restored From Raft Snapshots
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
HashiCorp Vault 0.0.1 ~ 2.1.2 -
HashiCorp Vault Enterprise 0.0.1 ~ 2.1.2 -

II. Public POCs for CVE-2026-105816

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III. Intelligence Information for CVE-2026-105816

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Other References for CVE-2026-105816 (1)

Same Patch Batch · HashiCorp · 2026-10-07 · 4 CVEs total

CVE-2026-89322 7.2 HIGH Vault ACL Policy Evaluation May Allow Bypass of Deny Restrictions
CVE-2026-105818 5.9 MEDIUM Vault PKI ACME Issues Certificate With Unvalidated SANs
CVE-2026-105820 5.4 MEDIUM Vault ACL Policy Cache Vulnerable to Cross-Namespace Policy Resolution

IV. Related Vulnerabilities

Same product: Vault
Same vendor: HashiCorp
Same weakness: CWE-22

V. Comments for CVE-2026-105816

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