Ok, based on my reads on Wiz and Calif writeups, there are 5-6 issues mapped to 2 CVEs.
Wiz (with GPT 5.6 Sol + Gemini 4 Argon) : Remote process-memory disclosure; OPcache type confusion; Fatal-error backtrace UAF. POC on Wordpress, Drupal and Joomla
Calif (with LLM, no specific model, but model is accessible to all): Zend HashTable OOM. Targets PHP-FPM and mod_php.
Both discovers the UAF on upload progress unserializer.
Surprised to see the anime girl dancing with POC is really uploaded by Calif researchers.
Both of them memory safety issues. C is just not fit for purpose in this decade.
Whats the issue with the POC video? I dont understand why thats surprising
BTW, the backport fix seems to disable session upload entire in old version, not fixing the issue like new versions:
https://github.com/php/php-src/commit/712e60f9edfd03f0960fc4...