Secuno
ENNL
Book demo

CVE-2026-32939

Dataease vulnerability

8.1 HIGHPublic exploitEPSS 0.63%
  1. Published20 Mar 2026

Description

DataEase is an open source data visualization analysis tool. Versions 2.10.19 and below have inconsistent Locale handling between the JDBC URL validation logic and the H2 JDBC engine's internal parsing. DataEase uses String.toUpperCase() without specifying an explicit Locale, causing its security checks to rely on the JVM's default runtime locale, while H2 JDBC always normalizes URLs using Locale.ENGLISH. In Turkish locale environments (tr_TR), Java converts the lowercase letter i to İ (dotted capital I) instead of the standard I, so a malicious parameter like iNIT becomes İNIT in DataEase's filter (bypassing its blacklist) while H2 still correctly interprets it as INIT. This discrepancy allows attackers to smuggle dangerous JDBC parameters past DataEase's security validation, and the issue has been confirmed as exploitable in real DataEase deployment scenarios running under affected regional settings. The issue has been fixed in version 2.10.20.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Dataease< 2.10.20

Remediation

Fixed in
Dataease≥ 2.10.20

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1065038.1
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1,…
CVE-2026-1006938.4
Hugo versions from v0.162.0 before v0.166.0 contain a case-sensitive validation flaw in…
CVE-2026-1005808.8
OpenClaw (npm package 'openclaw') before 2026.7.1 improperly handles case sensitivity…
CVE-2026-775608.1
Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth…
CVE-2026-867708.1
Snipe-IT before 8.7.0 fails to validate username case sensitivity during SAML…
CVE-2026-820678.1
Improper handling of case sensitivity in the configuration validation component of…

Frequently asked

Is CVE-2026-32939 being actively exploited?

CVE-2026-32939 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.63%.

How severe is CVE-2026-32939?

CVE-2026-32939 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.63% probability of exploitation.

Which products are affected by CVE-2026-32939?

Affected products include Dataease.

How do I fix CVE-2026-32939?

Upgrade affected software to a fixed version, for example Dataease 2.10.20 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32939 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.