CVE-2026-27167Disclosure(gradio_project / gradio)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

gradio_project CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Exploit / PoC references

https://github.com/gradio-app/gradio/security/advisories/GHSA-h3h8-3v2v-rg7m

Weakness type (CWE)

CWE-522CWE-798

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

gradio

Threat summary

3 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
General: 1 classified signal
Peaked 1d ago at 2 mentions (2026-02-28); latest day: 1
3 total mentions across 2 days

Affected systems

Vendors

gradio_project

Products

gradio

Deep dive

Activity timeline3 mentions / 2d

Signal classification2 categories

Disclosure

266.7%

General

133.3%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-02-28	2	Disclosure1General1
2026-03-01	1	Disclosure1

Full discourse3 posts

cvereports@_cvereports222d
Disclosure
CVE-2026-27167: Critical Credential Leakage and Open Redirect in Gradio OAuth Flow A critical vulnerability in the Gradio Python package allows unauthenticated remote attackers to extract sensitive Hugging Face access tokens from the server environmen... https://cvereports.com/reports/CVE-2026-27167
Post summary
The report announces a critical credential leakage and open redirect vulnerability in Gradio’s OAuth flow, allowing unauthenticated attackers to retrieve Hugging Face access tokens from the server environment.
0000055
33 followersView on X
CVE@CVEnew223d
General
CVE-2026-27167 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 … https://www.cve.org/CVERecord?id=CVE-2026-27167
Post summary
The text references CVE-2026-27167 for Gradio but provides no further technical or operational details.
00000131
56.6K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds223d
Disclosure
CVE-2026-27167 OAuth Token Theft Vulnerability in Gradio 4.16.0 to 6.5.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27167
Post summary
A brief disclosure of the OAuth token theft vulnerability in Gradio versions 4.16.0 to 6.5.0, with no mention of PoC, exploitation, or patch details.
0000052
4.0K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	gradio_project	gradio	-	python	-

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