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.
Published: 2026-05-28
Score: 6.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Thu, 28 May 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Speakr: Open redirect in is_safe_url via parser mismatch on next parameter
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-28T17:47:22.181Z

Reserved: 2026-05-11T20:14:43.203Z

Link: CVE-2026-45307

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-28T18:16:34.907

Modified: 2026-05-28T18:16:34.907

Link: CVE-2026-45307

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses