Palo Alto Networks
PHP Stale Internal Request-State Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Palo Alto Networks PAN-OS, treat it as Critical.
Briefing
There is no written leader briefing for this story yet. These questions come from the facts we hold.
Questions to ask IT
- Do we run Palo Alto Networks PAN-OS and PHP Group PHP, and which versions?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is still not patched, what mitigation is in place, and what is holding the fix up?
Next steps
- Confirm exposure and remediation status for affected products
Vulnerability facts
Full CVE detail CVE-2026-109619- 9.2 · CriticalExploitable over the network without any account, under specific conditions, and no one has to click or open anything. High impact on confidentiality, integrity and availability.CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~100% in 30 days)
- CVE-2026-109619 has an estimated ~100% chance of attack in 30 days (100th percentile) as of 2026-10-26 — probability signal, not confirmed exploitation.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- PHP contains a stale internal request-state vulnerability that allows for unauthenticated remote code execution.
- CVE-2026-109619 is confirmed as exploited in the wild (US known-exploited catalogue).
Products and services involved
- Palo Alto Networks PAN-OS93% match confidence · CVE-2026-109619
- PHP Group PHP88% match confidence · CVE-2026-109619
Pulse
Last checked 3d ago · Recheck overdue since 6 Nov 2026, 13:36 UK time
- Story27 Oct 2026, 01:32 UK time · 27 Oct
Linked reporting from CISA (official authority).
Read source (CISA Known Exploited Vulnerabilities)
1 entry so far. The timeline chart appears once this story has more history.
Sources
PHP Stale Internal Request-State Vulnerability
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ConfirmedHeadline90% confidence
PHP Stale Internal Request-State Vulnerability
- ConfirmedSummary fact75% confidence
PHP contains a stale internal request-state vulnerability that allows for unauthenticated remote code execution.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-109619
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-109619 is confirmed as exploited in the wild (US known-exploited catalogue)
- ConfirmedEstimated attack likelihood95% confidence
CVE-2026-109619 has an estimated ~100% chance of attack in 30 days (100th percentile) as of 2026-10-26 — probability signal, not confirmed exploitation