A flaw was found in coreDNS.
Priority LOW 20CWE-923Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
A flaw was found in coreDNS. This flaw allows a malicious user to reroute internal calls to some internal services that were accessed by the FQDN in a format of <service>.<namespace>.svc.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00176 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | coreDNS | unknown | — | No fix listed | CNA |
| — | github.com/coredns/coredns (Go) | up to 1.9.3 | — | No fix listed | GHSA-ch7v-37xg-75ph |
- coreDNS Vendor— Affected unknown Fixed in — No fix listed CNA
- github.com/coredns/coredns (Go) Vendor— Affected up to 1.9.3 Fixed in — No fix listed GHSA-ch7v-37xg-75ph
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: 1 product
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2022-2835
- 2026-10-03 Alias added: GHSA-ch7v-37xg-75ph
References
More Coredns vulnerabilities
- TI-2026-25615 CoreDNS TSIG authentication bypass on encrypted DNS transports CVSS 4.0HIGH 8.7
- TI-2026-25384 CoreDNS DoH GET path missing size validation causes CPU and memory amplification CVSS 4.0HIGH 8.7
- TI-2026-25382 CoreDNS DNS-over-QUIC unbounded goroutine growth leads to denial of service CVSS 4.0HIGH 8.7
- TI-2026-27682 CoreDNS TSIG authentication bypass on gRPC, QUIC, DoH, and DoH3 transports CVSS 4.0HIGH 8.2
- TI-2026-25885 CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison CVSS 4.0HIGH 8.2
- TI-2026-44486 NULL pointer dereference in coredns CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-2835 · CVE Program
- CVE-2022-2835 · NVD
- FIRST EPSS
- GHSA-ch7v-37xg-75ph · GitHub Advisory Database · CC BY 4.0
- CVE-2022-2835 · 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