CVE-2026-45307

Medium

Description

Speakr is a personal, self-hosted web application designed for transcribing audio recordings. Prior to 0.8.20-alpha, the is_safe_url() helper used to validate post-login redirect targets applied urljoin(request.host_url, target) before parsing, while the controller passed the raw target to redirect(). A scheme-relative input such as ////evil.com resolved to a same-host URL during validation but was emitted verbatim in the Location header, where the browser interpreted it as a network-path-relative redirect to an attacker-controlled host. This vulnerability is fixed in 0.8.20-alpha.

SeverityMedium
CVSS6.1
Exploit probability—
ProductMurtaza-nasir Speakr
PublishedMay 28, 2026
First seenMay 28, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
murtaza-nasir speakr< 0.8.20-alpha—

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CVE-2026-45307 · Murtaza-nasir Speakr · Dark Radar