CVE-2026-33589

MEDIUMNVD 6.56.5—

6.5

Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to access local files content from the docker container via path traversal.

CVSS v3: 6.5
EG Score: 6.5(high)
EPSS: 18.5%
KEV: Not listed

Published

May 7, 2026

Last Modified

May 7, 2026

Advisory Details (1)

Auto-updated May 7, 2026

Patch available. Sources: github.

github Patch Available

Arbitrary file read via Local File Inclusion in source creation · Advisory · lfnovo/open-notebook · GitHub

Affected: v1.8.4. The

https://github.com/lfnovo/open-notebook/security/advisories/GHSA-842v-h4cj-r646

Weakness Classification(1)

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

CWE-20Improper Input Validation

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.

2026-05-31 22:30 UTCepss_batch
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2026-05-20 13:56 UTCEG score recompute
2026-05-20 13:56 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-33589?

CVE-2026-33589 is a medium vulnerability published on May 7, 2026. Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to access local files content from the docker container via path traversal.

When was CVE-2026-33589 disclosed?

CVE-2026-33589 was first published in the National Vulnerability Database on May 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-33589 actively exploited?

CVE-2026-33589 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-33589?

CVE-2026-33589 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2026-33589?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33589, 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

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CVE-2026-33589

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Arbitrary file read via Local File Inclusion in source creation · Advisory · lfnovo/open-notebook · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-33589?

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Advisory Details (1)

Frequently asked(5)

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