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CVE-2026-112072— vault-java-driver: stored deeply nested JSON kills every thread that reads it

Quick assessment

Affected
jopenlibs vault-java-driver
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-java-driver 是 HashiCorp Vault 的 Java 客户端，它使用一个内嵌的 minimal-json 解析器来解析 Vault 返回的 JSON 响应，该解析器未设置嵌套深度限制。当遇到深度嵌套的值时，会引发 StackOverflowError；该异常会绕过 catch (Exception) 异常处理器，导致读取线程终止。若某个 Vault 令牌拥有对 KV v2 路径的写入权限但无读取权限，则可将此类深度嵌套的值存储在该路径中，从而导致后续通过该驱动对该路径的任何读取操作均

CVSS 6.5 · Medium EPSS 0.33% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
jopenlibs vault-java-driver 5.2.0< 7.0.0 affected
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I. Basic Information for CVE-2026-112072

Vulnerability Information
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Vulnerability Title
vault-java-driver: stored deeply nested JSON kills every thread that reads it
Source: CVE Program / CVE List V5
Vulnerability Description
vault-java-driver, a Java client for HashiCorp Vault, parses Vault's JSON responses with a vendored minimal-json parser that has no nesting depth limit. A deeply nested value raises a StackOverflowError, which escapes catch (Exception) handlers and kills the reading thread. A Vault token that can write but not read a KV v2 path can store such a value there, so every later read of that path through the driver fails. This requires Vault 1.19.x or earlier, because 1.20 and later reject values nested deeper than 298 levels. This issue affects io.github.jopenlibs:vault-java-driver 5.2.0 through 6.2.3 and is fixed in 7.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jopenlibs vault-java-driver 5.2.0 ~ 7.0.0 -

II. Public POCs for CVE-2026-112072

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III. Intelligence Information for CVE-2026-112072

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Other References for CVE-2026-112072 (2)

IV. Related Vulnerabilities

Same product: vault-java-driver
Same vendor: jopenlibs
Same weakness: CWE-674