Answer in brief
CVE-2026-121561 records a Medium severity (CVSS 6.3) vulnerability in Label Studio before 1.23.2 SSRF and Token Disclosure via Image Export Downloads. The current sources do not mark it as known exploited. The current feed maps HumanSignal/label-studio (generic), HumanSignal/label-studio-sdk (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps HumanSignal/label-studio (generic), HumanSignal/label-studio-sdk (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| HumanSignal/label-studiogeneric | >=0 <1.23.2 | 1.23.2 |
| HumanSignal/label-studio-sdkgeneric | >=0 <2.1.2 | 2.1.2 |
Published upstream
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 3, 2026
Label Studio before 1.23.2 (label-studio-sdk before 2.1.2) contains a server-side request forgery vulnerability that allows authenticated users to read internal URLs through image-bearing export formats. Attackers can import tasks with data.image pointing at internal services, export as YOLO or COCO with images to read responses, and spoof Host to capture the organization owner's API token.
Quoted source text, attributed separately from HOL analysis.