Regarding the rumours the PHP patches don’t fix the vulnerabilities - it’s not true, they patched the vulnerabilities of issue.
The rumours are also separate issue which people are mixing up. Don’t panic about that one.
If you use Palo-Alto firewalls, make sure you upgrade for the PHP vulns.
In particular, if you have the mgmt interface facing the internet upgrade those now. The Palo-Alto firewall VMs have ASLR disabled which makes exploitation trivial.
Also update Citrix Netscaler boxes for PHP vuln, particularly if you have mgmt interface facing Internet. Why? You guessed it - ASLR is disabled.
Also hp system management homepage (installed on HPE Proliant servers) all ship with PHP.. with no ASLR. There doesn’t appear to be a patch for that, you can use it to surf around flat networks as it drops you as SYSTEM/root.
There’s absolutely shit tons of exploits for PHP2Shell on GitHub and basically none of them actually work to RCE as nobody can figure out ASLR properly.
Which is good, because patching is going to take a long time.
https://php2shell.censys.com/
If you’re wondering why your million dollar cybersecurity vendor appliances don’t have ASLR enabled.
ASLR supporting PHP exploits are coming, probably next week.. but it’s a really good security control (from decades ago) you should demand your vendors actually enable as it enabled time for orgs paying attention to patch.
The cybersecurity vendor industry itself is essentially negligent when it comes to this stuff. https://infosec.exchange/@catc0n/117487878549556020
@GossiTheDog That toot says there's already a functional ASLR bypass poc out there...?
@christopherkunz there’s one on GitHub but it’s not super functional in reality.. plus people largely haven’t found it yet 🤣 it’d need more work to scale.
There is another PHP potential RCE vulnerability - CVE-2026-115560 - without a patch. Do not panic.
It is a non-default configuration and will not be a widespread issue.
The mitigations in this thread already fix it, if you want to panic.
PHP Foundation’s budget is about 700k a year. It’s used on something like 40 million websites. Almost no company who uses it contributes anything and many people work on it for free.
The latest trend is cybersecurity and AI vendors have realised they can vampire off its security for publicity (money).
Perhaps the world would be a better place if those orgs who rely on it just contributed sponsorship to the foundation, and vendors didn’t monetise vulnerabilities for themselves.
Oct 23, 2026, 12:44 PMSo what Meta (who famously [edit: used to] use PHP extensively in what used to be their flagship product) spent on the complete failure that was the metaverse (~$60 billion) could have funded them at current levels for close to 100,000 years
Security vendor Palo-Alto plans to release patches for their flagship firewall product to fix the PHP vulnerabilities in them sometime next week, after they’ve finished scratching their arse.