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TI-2026-57142 Aliases CVE-2026-82834GHSA-4x76-v872-9qwj

Improper access control in Doccano Open Source Annotation Tools for Machine Learning…

Priority MEDIUM 57CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation, Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00381 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DoccanoOpen Source Annotation Tools for Machine Learning Practitioners1.8.0; 1.8.1; 1.8.2; 1.8.3; 1.8.4; 1.8.5—No fix listedCNA
DoccanoAuto Labeling Pipeline Module to Annotate a Document Automatically1.8.0; 1.8.1; 1.8.2; 1.8.3; 1.8.4; 1.8.5—No fix listedCNA
  • Open Source Annotation Tools for Machine Learning Practitioners VendorDoccano Affected 1.8.0; 1.8.1; 1.8.2; 1.8.3; 1.8.4; 1.8.5 Fixed in — No fix listed CNA
  • Auto Labeling Pipeline Module to Annotate a Document Automatically VendorDoccano Affected 1.8.0; 1.8.1; 1.8.2; 1.8.3; 1.8.4; 1.8.5 Fixed in — No fix listed CNA

CPE names CNA · 2

CPEVersionsRoleVendor
cpe:2.3:a:doccano:open_source_annotation_tools_for_machine_learning_practitioners:*:*:*:*:*:*:*:*——Doccano
cpe:2.3:a:doccano:auto_labeling_pipeline_module_to_annotate_a_document_automatically:*:*:*:*:*:*:*:*——Doccano
  • cpe:2.3:a:doccano:open_source_annotation_tools_for_machine_learning_practitioners:*:*:*:*:*:*:*:* Versions — — ·Doccano
  • cpe:2.3:a:doccano:auto_labeling_pipeline_module_to_annotate_a_document_automatically:*:*:*:*:*:*:*:* Versions — — ·Doccano

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82834
  2. 2026-10-03 Alias added: GHSA-4x76-v872-9qwj

References

Exploit 1

  • TI-2026-57141 Improper access control in Doccano Open Source Annotation Tools for Machine Learning… CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences