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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 26, 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

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

  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.