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HIGH severity

GHSA-32j9-6qqm-mq9g — node-lmdb

HIGHFix: Venemo/node-lmdb@9776010

GHSA-32j9-6qqm-mq9g is a high-severity (CVSS 7.5) vulnerability in node-lmdb. 1 public exploit reference exists, so weaponization risk is real. A fix is available for node-lmdb — see the affected versions and patch details below.

Unhandled case in node-lmdb

Also known asCVE-2022-21164SNYK-JS-NODELMDB-2400723
Published
Mar 17, 2022
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Sep 25, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs70th percentile — riskier than 70% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-32j9-6qqm-mq9g plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

33other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
node-lmdbnpm
1Kdownloads / week

Description

The package node-lmdb before 0.9.7 is vulnerable to Denial of Service (DoS) when defining a non-invokable ToString value, which will cause a crash during type check.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmnode-lmdball versions0.9.7npm install node-lmdb@0.9.7
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-lmdb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update node-lmdb to 0.9.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-32j9-6qqm-mq9g is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-32j9-6qqm-mq9g can be triaged on real exposure rather than presence alone.

Tailored to GHSA-32j9-6qqm-mq9g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The package node-lmdb before 0.9.7 is vulnerable to Denial of Service (DoS) when defining a non-invokable `ToString` value, which will cause a crash during type check.
O3 Security · Impact-Aware SCA

Is GHSA-32j9-6qqm-mq9g in your dependencies?

O3 Security finds GHSA-32j9-6qqm-mq9g across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-32j9-6qqm-mq9g: node-lmdb (High 7.5) | O3 Security