RHLW-2026-49c9d6d5f43496cc

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Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-49c9d6d5f43496cc.json
Import Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-49c9d6d5f43496cc.json
JSON Data
https://api.osv.dev/v1/vulns/RHLW-2026-49c9d6d5f43496cc
Upstream
Published
2026-11-06T14:28:38Z
Modified
2026-11-06T19:30:02Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Lightwell Security Advisory: python-multipart 0.0.27+rhlw.1
Details

Red Hat Lightwell has released python-multipart 0.0.27+rhlw.1 with a backported security fix.

CVE-2026-53539: Python-Multipart: Quadratic-time querystring parsing with semicolon separators causes CPU denial of service

This patched artifact is a drop-in replacement for python-multipart 0.0.27 from PyPI.

References
Credits
    • Red Hat Lightwell - REMEDIATION_DEVELOPER

Affected packages

Red Hat Lightwell:PyPI / python-multipart

Package

Name
python-multipart
Purl
pkg:pypi/python-multipart

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.0.27+rhlw.1

Affected versions

0.*
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.0.9
0.0.10
0.0.11
0.0.12
0.0.13
0.0.14
0.0.15
0.0.16
0.0.17
0.0.18
0.0.19
0.0.20
0.0.21
0.0.22
0.0.23
0.0.24
0.0.25
0.0.26
0.0.27

Database specific

lightwell 
{
    "backport_base_version": "0.0.27",
    "remediated_version": "0.0.27+rhlw.1",
    "repository_url": "https://packages.redhat.com/lightwell/python/remediated/"
}
source 
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-49c9d6d5f43496cc.json"