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MEDIUM severity

phpMyAdmin Denial of service (DOS) attack with dbase extensionGHSA-426q-975p-w5cr

MEDIUM

GHSA-426q-975p-w5cr is a medium-severity (CVSS 5.9) CWE-399 vulnerability in phpmyadmin/phpmyadmin. A fix is available for phpmyadmin/phpmyadmin — see the affected versions and patch details below.

Also known asCVE-2016-6632
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk
0.07%0.93%1.79%2.65%0.6%2.1%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected
🐘phpmyadmin/phpmyadmin🐘phpmyadmin/phpmyadmin🐘phpmyadmin/phpmyadmin

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

An issue was discovered in phpMyAdmin where, under certain conditions, phpMyAdmin may not delete temporary files during the import of ESRI files. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistphpmyadmin/phpmyadmin≥ 4.6&&< 4.6.44.6.4composer require phpmyadmin/phpmyadmin:^4.6.4
🐘Packagistphpmyadmin/phpmyadmin≥ 4.4&&< 4.4.15.84.4.15.8composer require phpmyadmin/phpmyadmin:^4.4.15.8
🐘Packagistphpmyadmin/phpmyadmin≥ 4.0&&< 4.0.10.174.0.10.17composer require phpmyadmin/phpmyadmin:^4.0.10.17

Affected Products

1 product · 60 configurations
Application
phpmyadminphpmyadmin
60 versions
4.0.04.0.14.0.24.0.34.0.44.0.4.14.0.4.24.0.54.0.64.0.74.0.84.0.9

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for phpmyadmin/phpmyadmin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update phpmyadmin/phpmyadmin to 4.6.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-426q-975p-w5cr is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

An issue was discovered in phpMyAdmin where, under certain conditions, phpMyAdmin may not delete temporary files during the import of ESRI files. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.
O3 Security · Impact-Aware SCA

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phpMyAdmin Denial of service (DOS) attack with dbase…