Modsecurity apache: [GHSA-5pww-8rfg-9crf: RFC 2231 filename parameter bypasses multipart filename rules] (CVE-2026-104269)
Description
A vulnerability in modsecurity-apache identified as CVE-2026-104269 involves the RFC 2231 filename* parameter bypassing multipart filename rules. This issue affects multiple specific versions of modsecurity-apache. The severity is assessed as medium. No CVSS score or detailed impact information is provided. There is no indication of known exploits in the wild or available patches.
Affected software
pkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/modsecurity?arch=source&distro=focalpkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/modsecurity?arch=source&distro=jammypkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/modsecurity?arch=source&distro=noblepkg:deb/ubuntu/modsecurity-apache?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/modsecurity?arch=source&distro=stonkingpkg:deb/ubuntu/modsecurity-apache?arch=source&distro=stonkingpkg:deb/ubuntu/modsecurity?arch=source&distro=resolutepkg:deb/ubuntu/modsecurity-apache?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104269 is a vulnerability in modsecurity-apache where the RFC 2231 filename* parameter can bypass multipart filename rules. This bypass could potentially allow unintended processing of multipart file uploads. The vulnerability affects numerous explicitly listed versions of modsecurity-apache. No further technical details, CVSS score, or exploitation information is available from the provided data.
Potential Impact
The vulnerability allows bypassing multipart filename rules via the RFC 2231 filename* parameter. The exact impact is not detailed, but such bypasses may affect the handling of multipart file uploads, potentially leading to security policy evasion or improper file processing. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patches or fixes are referenced in the provided data. Users should monitor vendor communications for updates and consider applying any future patches promptly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-104269
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Threat ID: 6ad3f4f32cdf04f6566575ec
Added to database: 10/17/2026, 22:21:39 UTC
Last enriched: 10/17/2026, 22:40:56 UTC
Last updated: 10/17/2026, 22:40:56 UTC
Views: 2
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