CVE-2026-59989: Phalcon Volt compiler `join` filter compile-time PHP code injection (SSTI leads to RCE)

critical Affects phalcon/cphalcon. Feed 2026.10.29.2, updated 2026-10-29; published 2026-08-21; advisory modified 2026-09-11.

Phalcon Volt compiler `join` filter compile-time PHP code injection (SSTI leads to RCE)

Package: phalcon/cphalcon Composer
Affected versions: <5.16.0
Fixed in: 5.16.0
Severity: critical
Exploitation: not on CISA KEV · EPSS 1% (45.5th percentile)
Published: 2026-08-21
Source: osv.dev

References

CWE-1336 CWE-94

NVD record phalcon/cphalcon advisories

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