Vulnerability · Published Feb 7, 2026 · Assigned by VulDB

CVE-2026-2108jsbroks COCO Annotator Endpoint long_task denial of service

Medium 5.3

In plain English

A medium-severity security flaw in COCO Annotator from jsbroks. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.8%top 44.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was determined in jsbroks COCO Annotator up to 0.11.1. This impacts an unknown function of the file /api/info/long_task of the component Endpoint. This manipulation causes denial of service. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
jsbroks	COCO Annotator	0.11.00.11.1

Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:W/RC:R

References

VDB-344684 | jsbroks COCO Annotator Endpoint long_task denial of service vdb-entry, technical-description
VDB-344684 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #745547 | coco-annotator 0.11.1 Denial of Service third-party-advisory
https://github.com/nmmorette/vulnerability-research/blob/main/coco-anotator/Unauthenticated%20Task%20Queue%20Flood%20in%20COCO%20Annotator%202f1ef09b873680f99d39e3f7db9886fa.md exploit