What’s Vulnerable › Vulnerabilities

CVE-2026-82834: Doccano Open Source Annotation Tools for Machine Learning Practitioners Bulk-Delete Endpoint category-types LabelList access control

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-31 · updated 2026-09-02
• Weakness: CWE-266

Description

A security flaw has been discovered in Doccano Open Source Annotation Tools for Machine Learning Practitioners and Auto Labeling Pipeline Module to Annotate a Document Automatically up to 1.8.5. This affects the function LabelList of the file /v1/projects/1/category-types of the component Bulk-Delete Endpoint. Performing a manipulation results in improper access controls. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Doccano Auto Labeling Pipeline Module to Annotate a Document Automatically: 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5
• Doccano Open Source Annotation Tools for Machine Learning Practitioners: 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5

References

• https://drive.google.com/file/d/1qRWtrUHfr-huJlr-Tb8zFj3pIg8Jnwhk/view?usp=drive_link
• https://vuldb.com/cve/CVE-2026-82834
• https://vuldb.com/submit/876639
• https://vuldb.com/vuln/397246
• https://vuldb.com/vuln/397246/cti

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