Openai's GPT-5.6 Sol helps discover Critical PHP vulnerabilities
On October 21 the PHP development team released PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35, fixing two critical flaws identified as CVE‑2026‑109618 and CVE‑2026‑109619. Both receive a CVSS v4.0 severity score of 9.2 and could allow unauthenticated remote code execution, especially when PHP runs via the modphp method. The official announcement says the security firm Calif used OpenAI’s GPT‑5.6 Sol,…
Key points
- Two critical PHP flaws (CVE‑2026‑109618, CVE‑2026‑109619) with CVSS 9.2 were fixed in PHP 8.5.12, 8.4.27, 8.3.36, 8.2.35.
- OpenAI's GPT‑5.6 Sol, used by security firm Calif, identified the vulnerabilities under the "Patch the Planet" initiative.
- PHP 8.2 support ends Dec 31 2026; updating is the only complete mitigation.
The PHP team notes that temporary configuration mitigations exist but only a full version upgrade fully resolves the issue. Support for PHP 8.2 ends on December 31 2026, so sites still on that branch must upgrade promptly. OpenAI has warned that similar AI‑driven discoveries are likely to increase in the coming months. The article also briefly covers OpenAI’s improved programming performance on low‑resource languages, Recursive’s free “Flint” laptop coding model, and Anthropic’s Claude Duet agent preview, illustrating a broader trend of AI tools moving from code generation to security and migration tasks.
Model pages: GPT-5.6 Sol → · GPT-6 Astra → · GPT-6.1 Sol →
The story so far
4 episodes →- Openai's GPT-5.6 Sol helps discover Critical PHP vulnerabilitiesthis story
Critical PHP hole discovered by GPT-5.6 Sol. Exporting my site's PHP version today
note.com · 21 October 2026
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