CVE-2018-18240

CRITICALNVD 9.89.8—

9.8

Pippo through 1.11.0 allows remote code execution via a command to java.lang.ProcessBuilder because the XstreamEngine component does not use XStream's available protection mechanisms to restrict unmarshalling.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 85.8%
KEV: Not listed

Published

October 11, 2018

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated May 28, 2026

No patch confirmed yet.

generic

Lead to RCE when unmarshal xml data with XStream · Issue #454 · pippo-java/pippo · GitHub

https://github.com/pippo-java/pippo/issues/454

Affected Packages

(2 across 1 ecosystem)

Maven(2)

Package	Vulnerable range	Fixed in	Dependents
ro.pippo:pippo-core	0.10.0 ... 1.9.0 (23 versions)	1.12.0	—
ro.pippo:pippo-session	0.10.0 ... 1.9.0 (23 versions)	1.12.0	—

Weakness Classification(1)

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

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 9× in last 7d / 15× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 02:14 UTCEG score recompute
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-18240?

CVE-2018-18240 is a critical vulnerability published on October 11, 2018. Pippo through 1.11.0 allows remote code execution via a command to java.lang.ProcessBuilder because the XstreamEngine component does not use XStream's available protection mechanisms to restrict unmarshalling.

When was CVE-2018-18240 disclosed?

CVE-2018-18240 was first published in the National Vulnerability Database on October 11, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-18240 actively exploited?

CVE-2018-18240 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-18240?

CVE-2018-18240 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2018-18240?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-18240, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-18240

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CVE-2018-18240

📅 Published

🔄 Last Modified

📋 Advisory Details (1)