Coco Annotator
CVE-2026-2109
LOW
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Privilege assignment review
|
| Impact | CVSS 5.4 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network. Public exploit/POC available. |
| Exploit ScenarioDerived | A remote attacker could exploit this flaw, improper authorization. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Coco Annotator through version 0.11.1 contains an authorization bypass in the Delete Category Handler endpoint (/api/undo/) that allows authenticated attackers to manipulate category IDs and access or modify unauthorized data. The vulnerability requires valid credentials but can be exploited remotely with public exploit code available. No patch is currently available from the vendor.
Earlier versions of this analysis (1)
A vulnerability was identified in jsbroks COCO Annotator up to 0.11.1. Affected is an unknown function of the file /api/undo/ of the component Delete Category Handler. [CVSS 5.4 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Affects Coco Annotator. A vulnerability was identified in jsbroks COCO Annotator up to 0.11.1. Affected is an unknown function of the file /api/undo/ of the component Delete Category Handler. Such manipulation of the argument ID leads to improper authorization. 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.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionCVE.org
A vulnerability was identified in jsbroks COCO Annotator up to 0.11.1. Affected is an unknown function of the file /api/undo/ of the component Delete Category Handler. Such manipulation of the argument ID leads to improper authorization. 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.
Executive ViewAI
Organizations using jsbroks COCO Annotator should be aware of moderate risk from CVE-2026-2109 rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)CVE.org
More in Coco Annotator
View allA vulnerability, which was classified as problematic, was found in jsbroks COCO Annotator 0.11.1. Rated medium severity
Authorization bypass in jsbroks COCO Annotator up to version 0.11.1 allows remote unauthenticated attackers to modify da
Coco Annotator versions up to 0.11.1. is affected by improper resource shutdown or release (CVSS 5.3).
Path traversal in jsbroks COCO Annotator up to version 0.11.1 allows authenticated remote attackers to access arbitrary
Exploit-DB