How severe is CVE-2026-2109?

CVE-2026-2109 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-2109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2109?

CVE-2026-2109 affects Jsbroks Coco Annotator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-2109 have an EU (EUVD) identifier?

Yes. CVE-2026-2109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5718.

When was CVE-2026-2109 published?

CVE-2026-2109 was published on 2026-02-07 and last updated on 2026-06-17.

CVE-2026-2109

CVE-2026-2109 is a medium-severity vulnerability in Jsbroks Coco Annotator with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-266.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 5.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5718
Weakness: CWE-266
Affected product: Jsbroks Coco Annotator
Published: 2026-02-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-2109?: 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.
How severe is CVE-2026-2109?: CVE-2026-2109 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-2109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2109?: CVE-2026-2109 affects Jsbroks Coco Annotator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2109 have an EU (EUVD) identifier?: Yes. CVE-2026-2109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5718.
When was CVE-2026-2109 published?: CVE-2026-2109 was published on 2026-02-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jsbroks:coco_annotator:*:*:*:*:*:*:*:*

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