In Varnish Cache 7.0.0, 7.0.1, 7.0.2, and 7.1.0, it is possible to cause the Varnish…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
In Varnish Cache 7.0.0, 7.0.1, 7.0.2, and 7.1.0, it is possible to cause the Varnish Server to assert and automatically restart through forged HTTP/1 backend responses. An attack uses a crafted reason phrase of the backend response status line. This is fixed in 7.0.3 and 7.1.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | Varnish Cache Project |
| cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.1:*:*:*:*:*:*:* | 7.0.1 | Vulnerable | Varnish Cache Project |
| cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.2:*:*:*:*:*:*:* | 7.0.2 | Vulnerable | Varnish Cache Project |
| cpe:2.3:a:varnish_cache_project:varnish_cache:7.1.0:*:*:*:*:*:*:* | 7.1.0 | Vulnerable | Varnish Cache Project |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
- cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Varnish Cache Project
- cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·Varnish Cache Project
- cpe:2.3:a:varnish_cache_project:varnish_cache:7.0.2:*:*:*:*:*:*:* Versions 7.0.2 Vulnerable ·Varnish Cache Project
- cpe:2.3:a:varnish_cache_project:varnish_cache:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·Varnish Cache Project
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Software Collections
Timeline
- 2026-10-02 Threatist record created from CVE-2022-38150
- 2026-10-03 Alias added: GHSA-jg6x-rh3w-6pp3
References
Sources
- CVE-2022-38150 · CVE Program
- CVE-2022-38150 · NVD
- FIRST EPSS
- GHSA-jg6x-rh3w-6pp3 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-38150 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences