Evidence, corrections and updates
Primary PHP advisories take precedence over summaries. Research demonstrations are identified separately from confirmed general exposure. We revise content when the underlying guidance changes and show a review date. Report mistakes or missing evidence by email with the page URL and a primary-source reference. We do not publish guessed package revisions, invented test results or unsupported claims of safety.
Primary sources & further reading
PHP security teamSecurity advisory · 21 Oct 2026
CVE-2026-109618GHSA-w8hw-w9fx-j79w · OOM corruption
CVE-2026-109619GHSA-6wmf-4rv5-p3rp · Stale global state
PHP2Shell researchWiz Research · OpenAI · Calif
Wiz ResearchPHP2Shell technical research · 21 Oct 2026
CalifIndependent discovery and technical analysis
OpenAI version checkerOpen-source checker · Apache-2.0
NCSC-NLOperational response and affected software inventory
PHP supported versionsBranch lifecycle and end-of-life dates
Ubuntu security trackerCVE-2026-109618 · Distribution package status
Debian security trackerCVE-2026-109618 · Distribution package status
Wiz ResearchRead the original ↗CalifRead the original ↗PHP2Shell - upgrade PHPRead the original ↗PHP FoundationRead the original ↗OpenAI - Patch the PlanetRead the original ↗CloudflareRead the original ↗AkamaiRead the original ↗ImpervaRead the original ↗Palo Alto Networks Unit 42Read the original ↗CorelightRead the original ↗Cisco TalosRead the original ↗CrowdStrikeRead the original ↗