Detections
Analytics

SCA: security update for Flask-Reuploaded (GHSA-937x-gpqr-72gg)

high Tenable Cloud Security Plugin ID 444849

Description

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

 - Flask-Reuploaded provides file uploads for Flask. From 1.5.0 until 1.6.0, UploadSet.save(storage,
 name=...) in src/flask_uploads/flask_uploads.py applies lowercase_ext to the default upload path but uses
 the case-preserving extension helper for a caller-supplied name before extension_allowed evaluates an
 AllExcept denylist. An attacker who controls the name override can use a mixed-case dangerous extension to
 bypass a lowercase denylist and store the file in the served upload directory. Exploitation requires a
 denylist configuration, a user-influenced name override, and a deployment that resolves or executes
 extensions case-insensitively; pure allowlists remain protected and path containment is not bypassed. On
 an execution-capable upload directory, the stored file can execute with the web server's privileges and
 affect confidentiality, integrity, and availability. This issue is fixed in version 1.6.0.
 (CVE-2026-54567)

Solution

Update the Flask-Reuploaded library and its related packages to version 1.6.0 or later.

See Also

https://github.com/advisories/GHSA-937x-gpqr-72gg

Plugin Details

Severity: High

ID: 444849

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/18/2026

Updated: 9/15/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-54567

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2026

Vulnerability Publication Date: 7/17/2026

Reference Information

CVE: CVE-2026-54567