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.
"}],"value":"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."}],"impacts":[{"capecId":"CAPEC-230","descriptions":[{"lang":"en","value":"CAPEC-230 Serialized Data with Nested Payloads"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-05T07:57:30.653Z","orgId":"abd028dc-c042-4c4d-9749-38d0f850af89","shortName":"Echo"},"references":[{"tags":["patch"],"url":"https://github.com/jopenlibs/vault-java-driver/pull/81"},{"tags":["patch"],"url":"https://repo.maven.apache.org/maven2/io/github/jopenlibs/vault-java-driver/7.0.0/"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Upgrade io.github.jopenlibs:vault-java-driver to 7.0.0 or later.
"}],"value":"Upgrade io.github.jopenlibs:vault-java-driver to 7.0.0 or later."}],"source":{"discovery":"EXTERNAL"},"timeline":[{"lang":"en","time":"2026-10-05T15:05:00.000Z","value":"Reported to the maintainers"},{"lang":"en","time":"2026-10-15T23:16:00.000Z","value":"Fix proposed in pull request #81"}],"title":"vault-java-driver: stored deeply nested JSON kills every thread that reads it","x_gcve":[{"recordType":"advisory","vulnId":"CVE-2026-112072"}],"x_generator":{"engine":"Vulnogram 1.0.5"}}},"cveMetadata":{"assignerOrgId":"abd028dc-c042-4c4d-9749-38d0f850af89","assignerShortName":"Echo","cveId":"CVE-2026-112072","datePublished":"2026-11-05T07:57:30.653Z","dateReserved":"2026-10-18T13:40:53.662Z","dateUpdated":"2026-11-05T07:57:30.653Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2","x_gcve":[{"extensions":{"bcp-05-x-01":{"ai_annotations":[{"ai_level":"generated","description":"VLAI severity classification was generated by Vulnerability-Lookup's /vlai/severity-classification API endpoint based on vulnerability description text.","field_name":"x_gcve.extensions.vlai-severity-enrichment","models":[{"gna_source":1,"identifier":"vlai-severity-classification","name":"VLAI Severity","provider":"CIRCL","version":"fc530b2263ef5a89ae4c75ffcbf6b4d878d44b94"}],"review_status":"none","scope":"field","tags":["ai-computer-assisted:assistance-level=\"ai-generated\"","ai-computer-assisted:review-level=\"unreviewed\""]}]},"vlai-severity-enrichment":{"confidence":0.7659100890159607,"generated_at":"2026-11-05T08:26:38+00:00","severity":"Medium","vulnerability_id":"CVE-2026-112072"}}}]}