Detections
Analytics

Echo: flask-cors: security update to 6.0.0

medium Tenable Cloud Security Plugin ID 465141

Description

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

 - A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the
 handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function,
 which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization,
 causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to
 their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-
 origin access or block valid requests, creating security vulnerabilities and usability issues.
 (CVE-2024-6844)

Solution

Update the flask-cors library and its related packages to version 6.0.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-6844

Plugin Details

Severity: Medium

ID: 465141

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2024-6844

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2026

Vulnerability Publication Date: 3/20/2025

Reference Information

CVE: CVE-2024-6844