Python
CVE-2026-27167
NONE
GHSA-h3h8-3v2v-rg7m
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N
Lifecycle Timeline
4Blast Radius
ecosystem impact- 6 pypi packages depend on gradio (6 direct, 0 indirect)
Ecosystem-wide dependent count for version 4.16.0.
DescriptionGitHub Advisory
Gradio is an open-source Python package designed for quick prototyping. Starting in version 4.16.0 and prior to version 6.6.0, Gradio applications running outside of Hugging Face Spaces automatically enable "mocked" OAuth routes when OAuth components (e.g. gr.LoginButton) are used. When a user visits /login/huggingface, the server retrieves its own Hugging Face access token via huggingface_hub.get_token() and stores it in the visitor's session cookie. If the application is network-accessible, any remote attacker can trigger this flow to steal the server owner's HF token. The session cookie is signed with a hardcoded secret derived from the string "-v4", making the payload trivially decodable. Version 6.6.0 fixes the issue.
AnalysisAI
Gradio is an open-source Python package designed for quick prototyping. Starting in version 4.16.0 and prior to version 6.6.0, Gradio applications running outside of Hugging Face Spaces automatically enable "mocked" OAuth routes when OAuth components (e.g.
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Vulnerability AssessmentAI
| Risk Assessment | Attack vector: Network. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker could exploit this vulnerability to compromise the affected system. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More from same product – last 7 days
Unauthenticated remote attackers can invoke MCP tool handlers and exfiltrate the operator's long-lived Meta Graph API ac
Remote code execution in Splunk Enterprise, Splunk Cloud Platform, and the Splunk Secure Gateway app allows a low-privil
Unauthenticated remote code execution in Crawl4AI versions <= 0.8.6 allows attackers to escape the AST-based sandbox in
Remote code execution in Langflow versions through 1.9.1 allows unauthenticated attackers to execute arbitrary Python co
Authenticated remote code execution in ChromaDB Python project versions 0.4.17 and later enables attackers holding the U
Share
External POC / Exploit Code
Leaving vuln.today