Doccano Open Source Annotation Tools for Machine Learning Practitioners Project Example Detail Endpoint examples ExampleDetail access control

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82833
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-31 20:17:15 UTC
Updated2026-08-31 20:17:15 UTC
DescriptionA vulnerability was identified 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. Affected by this issue is the function ExampleDetail of the file /v1/projects/1/examples/ of the component Project Example Detail Endpoint. Such manipulation leads to improper access controls. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-266 | CWE-284 | CWE-284 Improper Access Controls | CWE-266 Incorrect Privilege Assignment

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary2.1LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
3.0CNADECLARED6.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary6.5AV:N/AC:L/Au:S/C:P/I:P/A:P
2.0CNADECLARED6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.0 Not specified
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.1 Not specified
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.2 Not specified
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.3 Not specified
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.4 Not specified
CNA Doccano Open Source Annotation Tools For Machine Learning Practitioners affected 1.8.5 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.0 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.1 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.2 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.3 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.4 Not specified
CNA Doccano Auto Labeling Pipeline Module To Annotate A Document Automatically affected 1.8.5 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/397245/cti [email protected] vuldb.com
vuldb.com/submit/876617 [email protected] vuldb.com
vuldb.com/vuln/397245 [email protected] vuldb.com
vuldb.com/cve/CVE-2026-82833 [email protected] vuldb.com
drive.google.com/file/d/1gqrFfbP7dSSp4Pf-4iEoPtNR7WjSZPML/view [email protected] drive.google.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Stephen Lin (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-31T00:00:00.000ZAdvisory disclosed
CNA2026-08-31T02:00:00.000ZVulDB entry created
CNA2026-08-31T09:30:57.000ZVulDB entry last update

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