Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, PdoAdapter::doClear() builds a DELETE statement using a namespace derived from the caller-supplied $prefix without binding or escaping it, allowing a caller able to influence $prefix to break out of the LIKE literal and alter query semantics or deletion scope. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
https://github.com/symfony/symfony/security/advisories/GHSA-6qh9-h6wf-jgqc
https://github.com/symfony/symfony/releases/tag/v8.0.12
https://github.com/symfony/symfony/releases/tag/v7.4.12
https://github.com/symfony/symfony/releases/tag/v6.4.40
https://github.com/symfony/symfony/releases/tag/v5.4.52
https://github.com/symfony/symfony/commit/ec50b799d79ebe24561f29351c1efcb6da95c9b1
Published: 2026-07-14
Updated: 2026-07-15
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 7.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Severity: High
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00062