SCA: security update for reflex (GHSA-rfh5-c9h5-q8jm)

low Tenable Cloud Security Plugin ID 446889

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Reflex is a library to build full-stack web apps in pure Python. In versions 0.5.4 through 0.8.14, the
/auth-codespace endpoint automatically assigns the redirect_to query parameter value directly to client-
side links without any validation and triggers automatic clicks when the page loads in a GitHub Codespaces
environment. This allows attackers to redirect users to arbitrary external URLs. The vulnerable route is
only registered when a Codespaces environment is detected, and the detection is controlled by environment
variables. The same behavior can be activated in production if the
GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN environment variable is set. The vulnerability occurs because the
code assigns the redirect_to query parameter directly to a.href without any validation and immediately
triggers a click (automatic navigation), allowing users to be sent to arbitrary external domains. The
execution condition is based on the presence of a sessionStorage flag, meaning it triggers immediately on
first visits or in incognito/private browsing windows, with no server-side origin/scheme whitelist or
internal path enforcement defenses in place. This issue has been patched in version 0.8.15. As a
workaround, users can ensure that GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN is not set in a production
environment. (CVE-2025-62379)

Solution

There is no known solution at this time.

See Also

https://github.com/advisories/GHSA-rfh5-c9h5-q8jm

Plugin Details

Severity: Low

ID: 446889

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/31/2026

Updated: 8/31/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2025-62379

CVSS v3

Risk Factor: Low

Base Score: 3.1

Temporal Score: 2.7

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2025

Vulnerability Publication Date: 10/15/2025

Reference Information

CVE: CVE-2025-62379

cwe: CWE-601