CVE-2023-39020

CRITICALNVD 9.89.8—Elevated

9.8

stanford-parser v3.9.2 and below was discovered to contain a code injection vulnerability in the component edu.stanford.nlp.io.getBZip2PipedInputStream. This vulnerability is exploited via passing an unchecked argument.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 32.1%
KEV: Not listed

Published

July 28, 2023

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jun 7, 2026

No patch confirmed yet.

generic

My-CVE-Public-References/edu_stanford_nlp_stanford-parser at main · LetianYuan/My-CVE-Public-References · GitHub

https://github.com/LetianYuan/My-CVE-Public-References/tree/main/edu_stanford_nlp_stanford-parser

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
edu.stanford.nlp:stanford-parser	2.0.2 ... 3.9.2 (17 versions)	4.5.5	—

Weakness Classification(1)

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

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 15× 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.

2026-06-07 15:23 UTCepss_batch
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2026-06-06 13:46 UTCepss_batch
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2026-05-31 22:30 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-39020?

CVE-2023-39020 is a critical vulnerability published on July 28, 2023. stanford-parser v3.9.2 and below was discovered to contain a code injection vulnerability in the component edu.stanford.nlp.io.getBZip2PipedInputStream. This vulnerability is exploited via passing an unchecked argument.

When was CVE-2023-39020 disclosed?

CVE-2023-39020 was first published in the National Vulnerability Database on July 28, 2023, 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-2023-39020 actively exploited?

CVE-2023-39020 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-39020?

CVE-2023-39020 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-39020?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-39020, 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-2023-39020

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Is Your Infrastructure Affected by CVE-2023-39020?

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CVE-2023-39020

📅 Published

🔄 Last Modified

📋 Advisory Details (1)