CVE-2026-112072

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{"bugzilla": {"description": "io.github.jopenlibs/vault-java-driver: vault-java-driver: Denial of Service via deeply nested JSON structures", "id": "2567777", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2567777"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["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.", "A flaw was found in vault-java-driver. The driver's internal JSON parser does not enforce a limit on nesting depth when processing server responses. An authenticated user with write permissions to a Vault path can store deeply nested data, which triggers a stack overflow during parsing and terminates the application's reading thread. This issue results in a Denial of Service (DoS) for any application attempting to read that path."], "mitigation": {"lang": "en:us", "value": "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."}, "name": "CVE-2026-112072", "public_date": "2026-11-05T07:57:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-112072\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-112072\nhttps://github.com/jopenlibs/vault-java-driver/pull/81\nhttps://repo.maven.apache.org/maven2/io/github/jopenlibs/vault-java-driver/7.0.0/"], "statement": "This vulnerability is rated as Moderate impact because successful exploitation requires an authenticated actor with write privileges to inject malformed secrets, limiting the potential impact to an application-level denial of service. Confidentiality and data integrity remain unaffected, and the blast radius is confined to the specific client thread or process attempting to parse the crafted response. Furthermore, exposure is constrained because backend Vault deployments running version 1.20 or newer inherently reject deeply nested structures, preventing the flaw from being triggered.", "threat_severity": "Moderate"}

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