CVE-2024-21510

sinatra: Open Redirect Vulnerability in Sinatra via X-Forwarded-Host Header

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Severity

Moderate

Red Hat Product Security

5.4

CVSS 3.1

Review impact separately from score.

Published · November 1, 2024

Updated · August 7, 2026

Description

A flaw was found in Sinatra. This vulnerability allows an Open Redirect attack via the X-Forwarded-Host (XFH) header, potentially enabling Cache Poisoning or Server-Side Request Forgery (SSRF) when used in caching servers or reverse proxies.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE-807 · Reliance on Untrusted Inputs in a Security Decision