CVE-2026-65575
Unauthenticated PHP Object Injection in Accalia <=1.5.3 enabling remote takeover.
Is CVE-2026-65575 being exploited?
Not confirmed. CVE-2026-65575 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-65575?
CVE-2026-65575 is rated Critical. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-65575?
Not known from our data. No patch reference has been recorded for CVE-2026-65575, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-65575 affect?
CVE-2026-65575 affects Accalia <= 1.5.3, Self-hosted Accalia instances. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65575?
Isolate instances, apply WAF/IPS rules, restrict access, and upgrade to a vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated PHP Object Injection can enable remote code execution, arbitrary file access, and full application takeover.
Immediate action required
- affected<= 1.5.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.