Label Studio through 1.23.0 SSRF via Unvalidated Webhook URL
Priority HIGH 70CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Label Studio through 1.23.0 fails to validate webhook URLs, allowing authenticated users to dispatch requests to internal services including RFC 1918 addresses and cloud metadata endpoints. Attackers can create webhooks targeting private networks and exfiltrate annotation data by enabling payload transmission in outbound requests.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00401 34th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HumanSignal | label-studio | up to 1.23.0 | — | No fix listed | CNA |
- label-studio VendorHumanSignal Affected up to 1.23.0 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* | — | — | HumanSignal |
- cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* Versions — — ·HumanSignal
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85179
- 2026-10-03 Alias added: GHSA-93hf-p7mp-qw5g
References
More HumanSignal vulnerabilities
- TI-2023-23482 Label Studio has Hardcoded Django `SECRET_KEY` that can be Abused to Forge Session Tokens CVSS 3.1CRITICAL 9.8
- TI-2025-18949 Label Studio has a Path Traversal Vulnerability via image Field CVSS 4.0HIGH 8.7
- TI-2025-18951 Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint CVSS 3.1HIGH 8.6
- TI-2023-25457 Object Relational Mapper Leak Vulnerability in Filtering Task in Label Studio CVSS 3.1HIGH 7.5
- TI-2026-17727 Label Studio vulnerable to full account takeover by chaining Stored XSS + IDOR in User Profile via custom_hotkeys field CVSS 4.0HIGH 8.6
- TI-2026-58537 Label Studio through 1.23.0 Cross-Organization Storage URI Resolution CVSS 4.0HIGH 8.3
Sources
- CVE-2026-85179 · CVE Program
- CVE-2026-85179 · NVD
- FIRST EPSS
- GHSA-93hf-p7mp-qw5g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences