Detections
Analytics

SCA: security update for multipart (GHSA-p2m9-wcp5-6qw3)

high Tenable Cloud Security Plugin ID 438679

Description

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

 - multipart is a fast multipart/form-data parser for python. Prior to 1.2.2, 1.3.1 and 1.4.0-dev, the
 parse_options_header() function in multipart.py uses a regular expression with an ambiguous alternation,
 which can cause exponential backtracking (ReDoS) when parsing maliciously crafted HTTP or multipart
 segment headers. This can be abused for denial of service (DoS) attacks against web applications using
 this library to parse request headers or multipart/form-data streams. The issue is fixed in 1.2.2, 1.3.1
 and 1.4.0-dev. (CVE-2026-28356)

Solution

Update the multipart library and its related packages to version 1.2.2 or later.

See Also

https://github.com/advisories/GHSA-p2m9-wcp5-6qw3

Plugin Details

Severity: High

ID: 438679

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/12/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-28356

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: 3/12/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-28356