CVE-2026-50052
varnishVulnerabilityCVSS 2.3Patched
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 : 2.3 LOW
Attack vectorNetwork (remote)
Attack complexityHigh
Attack requirementsPresent
Privileges requiredNone
User interactionPassive
ScopeN
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Subsequent confidentialityLow
Subsequent integrityNone
Subsequent availabilityNone
Vector: AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/AU:N/R:A/V:D/RE:L/U:Green
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 |
|---|---|---|---|---|
| Debian:13 | varnish | - | 7.7.0-3+deb13u1 | fixed |
| Ubuntu:14.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:Pro:16.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:Pro:18.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:Pro:20.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:Pro:22.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:24.04:LTS | varnish | - | - | affected (no fix yet) |
| Ubuntu:25.10 | varnish | - | - | affected (no fix yet) |
| Ubuntu:26.04:LTS | varnish | - | - | affected (no fix yet) |