CVE-2026-6722
php8VulnerabilityCVSS 9.5Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 4.0 : 9.5 CRITICAL · CVSS 3.1 : 9.8 CRITICAL
Attack vectorNetwork (remote)
Attack complexityHigh
Attack requirementsPresent
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Subsequent confidentialityHigh
Subsequent integrityHigh
Subsequent availabilityHigh
Vector: AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:Y/RE:M/U:Red
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| openSUSE:Tumbleweed | php8 | - | 8.5.6-1.1 | fixed |
| Red Hat:enterprise_linux:9::appstream | php | - | 0:8.3.31-2.module+el9.8.0+24329+a775fb4e | fixed |
| Red Hat:enterprise_linux:9::appstream | php | - | 0:8.2.31-1.module+el9.8.0+24325+74f58d38 | fixed |
| Red Hat:enterprise_linux:8::appstream | php | - | 0:8.2.31-1.module+el8.10.0+24323+abc2b0db | fixed |
| Red Hat:enterprise_linux:10.2 | php | - | 0:8.3.31-1.el10_2 | fixed |
| Red Hat:enterprise_linux:9::appstream | php | - | 0:8.0.30-6.el9_8 | fixed |
| Red Hat:enterprise_linux:8::appstream | php | - | 0:7.4.33-4.module+el8.10.0+24352+91532d3e | fixed |