CVE-2026-107383

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (30th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.5, 3.3.4, 3.4.7, and 3.5.4, the GeoJSON Polygon and MultiPolygon binary encoders size a Buffer.allocUnsafe() allocation from each ring's numeric length before confirming that the ring is an array. A malformed non-array ring can therefore reserve bytes that the writing loop skips, and the connector sends the full buffer through execute() or batch(), disclosing uninitialized Node.js heap data into a database value. The persisted data can include other users' content, session material, database credentials, or TLS key material and may propagate to backups and replicas. The text-protocol query() path is not affected. This issue is fixed in versions 3.2.5, 3.3.4, 3.4.7, and 3.5.4.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 8, 2026

Last Modified

October 8, 2026

Advisory Details (10)

Auto-updated Oct 8, 2026
Patch available. Sources: github, github_commit, github_release.
generic

[CONJS-367] Uninitialized process memory leaked to server via malformed GeoJSON Polygon parameter - Jira

https://jira.mariadb.org/browse/CONJS-367
github_release Patch Available

MariaDB Connector/Node.js 3.5.4

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.5.4

https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.4
github_release Patch Available

MariaDB Connector/Node.js 3.4.7

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.4.7

https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.7
github_release Patch Available

MariaDB Connector/Node.js 3.3.4

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.3.4

https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.4
github_release Patch Available

MariaDB Connector/Node.js 3.2.5

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.2.5

https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.5
github_commit Patch Available

commit faa27d1b2b77 (mariadb-corporation/mariadb-connector-nodejs)

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.3.4 (contains commit faa27d1b2b77)

https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/faa27d1b2b7753a54000f586d5148089b60d1284
github_commit Patch Available

commit b2ca628864b0 (mariadb-corporation/mariadb-connector-nodejs)

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.5.4 (contains commit b2ca628864b0)

https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/b2ca628864b0fc2e3e94ea96910f6b693ad5bd30
github_commit Patch Available

commit a4aa048b57dc (mariadb-corporation/mariadb-connector-nodejs)

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.2.5 (contains commit a4aa048b57dc)

https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/a4aa048b57dc47309b80e5cc25a4a8eedb32fd9f
github_commit Patch Available

commit 2314c03b785d (mariadb-corporation/mariadb-connector-nodejs)

Patch available: mariadb-corporation/mariadb-connector-nodejs 3.4.7 (contains commit 2314c03b785d)

https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/2314c03b785db482599d2befd06f4992e5fc46b3
githubMentions a patch (unverified)

Exposure of Sensitive Information to an Unauthorized Actor in mariadb · Advisory · mariadb-corporation/mariadb-connector-nodejs · GitHub

https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-48qf-xh34-q73r

Vendor Advisories for CVE-2026-107383(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
mariadb—
  • every version up to 3.2.5: fixed in 3.2.5
  • 3.3.0 up to 3.3.4: fixed in 3.3.4
  • 3.4.0 up to 3.4.7: fixed in 3.4.7
  • 3.5.0-rc.0 up to 3.5.4: fixed in 3.5.4
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 5× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-09 21:11 UTCEG score recompute
  2. 2026-10-09 20:06 UTCEPSS rescore
  3. 2026-10-08 19:18 UTCEG score recompute
  4. 2026-10-08 18:37 UTCEG score recompute
  5. 2026-10-08 18:37 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-107383?
CVE-2026-107383 is a high vulnerability published on October 8, 2026. MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.5, 3.3.4, 3.4.7, and 3.5.4, the GeoJSON Polygon and MultiPolygon binary encoders size a Buffer.allocUnsafe() allocation from each ring's numeric length before confirming that…
When was CVE-2026-107383 disclosed?
CVE-2026-107383 was first published on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107383 actively exploited?
CVE-2026-107383 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107383?
CVE-2026-107383 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-107383?
A fix for CVE-2026-107383 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-107383 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-107383

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