Open Notebook up to 1.8.3 Docker Container input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Open Notebook up to 1.8.3. Impacted is an unknown function of the component Docker Container Handler. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2026-33589. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in Open Notebook up to 1.8.3. This vulnerability affects an unknown code block of the component Docker Container Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The weakness was presented by CERT-EU as GHSA-842v-h4cj-r646. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-33589 since 03/23/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-28348). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/23/2026 CVE reserved
05/07/2026 +44 days Advisory disclosed
05/07/2026 +0 days VulDB entry created
05/07/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-842v-h4cj-r646
Researcher: CERT-EU
Status: Not defined

CVE: CVE-2026-33589 (🔒)
GCVE (CVE): GCVE-0-2026-33589
GCVE (VulDB): GCVE-100-361828
EUVD: 🔒

Entryinfo

Created: 05/07/2026 13:49
Updated: 05/07/2026 14:56
Changes: 05/07/2026 13:49 (65), 05/07/2026 14:56 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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