How severe is CVE-2026-48545?

CVE-2026-48545 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-48545 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48545?

CVE-2026-48545 affects Gradio Project Gradio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-48545?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-48545 have an EU (EUVD) identifier?

Yes. CVE-2026-48545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32547.

When was CVE-2026-48545 published?

CVE-2026-48545 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-48545

CVE-2026-48545 is a medium-severity vulnerability in Gradio Project Gradio with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v4: 7.6
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32547
Weakness: CWE-384
Affected product: Gradio Project Gradio
Published: 2026-05-27
Last modified: 2026-06-17

Description

Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a shared module-level HTTP client used across all users in the reverse proxy endpoint. Attackers controlling any HF Space can return a parent-domain cookie that the shared client stores and automatically replays into all subsequent proxy requests to other legitimate Spaces, affecting all users of the same Gradio deployment.

Frequently asked questions

What is CVE-2026-48545?: Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a shared module-level HTTP client used across all users in the reverse proxy endpoint. Attackers controlling any HF Space can return a parent-domain cookie that the shared client stores and automatically replays into all subsequent proxy requests to other legitimate Spaces, affecting all users of the same Gradio deployment.
How severe is CVE-2026-48545?: CVE-2026-48545 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-48545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48545?: CVE-2026-48545 affects Gradio Project Gradio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-48545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-48545 have an EU (EUVD) identifier?: Yes. CVE-2026-48545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32547.
When was CVE-2026-48545 published?: CVE-2026-48545 was published on 2026-05-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gradio_project:gradio:*:*:*:*:*:python:*:*

More vulnerabilities in Gradio Project Gradio

CVE-2024-47167 — Critical (CVSS 9.8): Gradio is an open-source Python package designed for quick prototyping. This vulnerability relates to **Server-Side…
CVE-2024-39236 — Critical (CVSS 9.8): Gradio v4.36.1 was discovered to contain a code injection vulnerability via the component /gradio/component_meta.py.…
CVE-2024-0964 — Critical (CVSS 9.4): A local file include could be remotely triggered in Gradio due to a vulnerable user-supplied JSON value in an API…
CVE-2024-47871 — Critical (CVSS 9.1): Gradio is an open-source Python package designed for quick prototyping. This vulnerability involves **insecure…
CVE-2024-4253 — Critical (CVSS 9.1): A command injection vulnerability exists in the gradio-app/gradio repository, specifically within the…
CVE-2022-24770 — High (CVSS 8.8): `gradio` is an open source framework for building interactive machine learning models and demos. Prior to version…

All CVEs affecting Gradio Project Gradio →

Other CWE-384 (Session Fixation) vulnerabilities

CVE-2024-11317 — Critical (CVSS 10.0): Session Fixation vulnerabilities allow an attacker to fix a users session identifier before login providing an…
CVE-2024-38513 — Critical (CVSS 10.0): Fiber is an Express-inspired web framework written in Go A vulnerability present in versions prior to 2.52.5 is a…
CVE-2021-20151 — Critical (CVSS 10.0): Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's…
CVE-2025-67446 — Critical (CVSS 9.8): Improper Authentication (Authentication Bypass) exists in Neterbit NW-431F Router 20241014-IR03 and before. The router…
CVE-2026-25101 — Critical (CVSS 9.8): Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same…
CVE-2026-24352 — Critical (CVSS 9.8): PluXml CMS allows a user's session identifier to be set before authentication. The value of this session ID stays the…

Browse all CWE-384 (Session Fixation) vulnerabilities →