CVE-2026-38429

CRITICALNVD 9.89.8—

9.8

OpenCMS v20 and before is vulnerable to XML External Entity (XXE) in the Admin Import DB feature due to insecure XML parsing of user supplied .zip files containing a manifest.xml.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 19.1%
KEV: Not listed

Published

May 5, 2026

Last Modified

May 6, 2026

Advisory Details (1)

Auto-updated May 6, 2026

No patch confirmed yet.

generic

Fixed XXE vulnerability in older import versions. · alkacon/opencms-core@e3e41e5 · GitHub

https://github.com/alkacon/opencms-core/commit/e3e41e5a96d71383279e7d23c627efc9934008c1

Weakness Classification(1)

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

CWE-611Improper Restriction of XML External Entity Reference (XXE)

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2026-38429?

CVE-2026-38429 is a critical vulnerability published on May 5, 2026. OpenCMS v20 and before is vulnerable to XML External Entity (XXE) in the Admin Import DB feature due to insecure XML parsing of user supplied .zip files containing a manifest.xml.

When was CVE-2026-38429 disclosed?

CVE-2026-38429 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-38429 actively exploited?

CVE-2026-38429 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-38429?

CVE-2026-38429 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-38429?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38429, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-38429

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Fixed XXE vulnerability in older import versions. · alkacon/opencms-core@e3e41e5 · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-38429?

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Advisory Details (1)

Frequently asked(5)

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