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.
Published: 2026-11-05
Score: 6.5 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Solution

Upgrade io.github.jopenlibs:vault-java-driver to 7.0.0 or later.

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History

Thu, 05 Nov 2026 08:00:00 +0000

Type Values Removed Values Added
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.
Title vault-java-driver: stored deeply nested JSON kills every thread that reads it
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Echo

Published:

Updated: 2026-11-05T07:57:30.653Z

Reserved: 2026-10-18T13:40:53.662Z

Link: CVE-2026-112072

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T08:17:03.663

Modified: 2026-11-05T08:17:03.663

Link: CVE-2026-112072

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T09:30:11Z

Weaknesses