What’s Vulnerable › Vulnerabilities

CVE-2024-58389: HoloViz Panel from 1.2.2 before 1.9.0 Open Redirect via next Parameter

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-27
• Weakness: CWE-601

Description

HoloViz Panel from 1.2.2 before 1.9.0 contains an open redirect vulnerability in panel/auth.py that allows remote attackers to redirect users by supplying an unvalidated next query parameter. BasicLoginHandler and PasswordLoginHandler store the parameter in a next_url cookie, so crafted login links send victims to attacker-controlled external sites after successful login.

Affected products

• HoloViz Panel: from 1.2.2 before 1.9.0 — fixed in 1.9.0

How to fix

Upgrade to a fixed version: HoloViz Panel 1.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/holoviz/panel
• https://github.com/holoviz/panel/blob/v1.8.10/panel/auth.py#L866-L900
• https://github.com/holoviz/panel/commit/a6a8b2cb9592a014cf6a7b0d3d5fc9cbf59bb2ed
• https://github.com/holoviz/panel/issues/6782
• https://www.vulncheck.com/advisories/holoviz-panel-from-1.2.2-before-1.9.0-open-redirect-via-next-parameter

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