How severe is CVE-2021-31599?

CVE-2021-31599 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-31599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31599?

CVE-2021-31599 primarily affects Hitachi Vantara Pentaho. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-31599?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-31599 published?

CVE-2021-31599 was published on 2021-11-08 and last updated on 2026-06-17.

CVE-2021-31599

CVE-2021-31599 is a high-severity vulnerability in Hitachi Vantara Pentaho with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Hitachi Vantara Pentaho
Published: 2021-11-08
Last modified: 2026-06-17

Description

An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. A reports (.prpt) file allows the inclusion of BeanShell scripts to ease the production of complex reports. An authenticated user can run arbitrary code.

Frequently asked questions

What is CVE-2021-31599?: An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. A reports (.prpt) file allows the inclusion of BeanShell scripts to ease the production of complex reports. An authenticated user can run arbitrary code.
How severe is CVE-2021-31599?: CVE-2021-31599 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-31599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31599?: CVE-2021-31599 primarily affects Hitachi Vantara Pentaho. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-31599?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-31599 published?: CVE-2021-31599 was published on 2021-11-08 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:hitachi:vantara_pentaho:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachi:vantara_pentaho_business_intelligence_server:*:*:*:*:*:*:*:*

More vulnerabilities in Hitachi Vantara Pentaho

CVE-2021-34684 — Critical (CVSS 9.8): Hitachi Vantara Pentaho Business Analytics through 9.1 allows an unauthenticated user to execute arbitrary SQL queries…
CVE-2022-4815 — High (CVSS 8.0): Hitachi Vantara Pentaho Business Analytics Server versions before 9.4.0.1 and 9.3.0.3, including 8.3.x deserialize…
CVE-2021-45447 — High (CVSS 7.7): Hitachi Vantara Pentaho Business Analytics Server versions before 9.3.0.0, 9.2.0.2 and 8.3.0.25 with the Data Lineage…
CVE-2021-45448 — High (CVSS 7.1): Pentaho Business Analytics Server versions before 9.2.0.2 and 8.3.0.25 using the Pentaho Analyzer plugin exposes a…
CVE-2021-31601 — High (CVSS 7.1): An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x.…
CVE-2020-24665 — Medium (CVSS 6.5): The Dashboard Editor in Hitachi Vantara Pentaho through 7.x - 8.x contains an XML Entity Expansion injection…

All CVEs affecting Hitachi Vantara Pentaho →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →