CVE-2026-47220
- Source
- https://cve.org/CVERecord?id=CVE-2026-47220
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47220.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-47220
- Aliases
-
- BIT-envoy-2026-47220
- GHSA-j9wh-4qfm-wf2v
- Downstream
- Related
- Published
- 2026-06-26T18:02:17Z
- Modified
- 2026-10-28T02:30:29Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format
- Details
-
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTED_SERVER_NAME(X:Y)% is used in log format and host related options is specified, like HOST_FIRST, SNI_FIRST, it's possible to crash Envoy when the specified host header is missing in the request headers. This vulnerability is fixed in 1.37.5 and 1.38.3.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-476" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47220.json" }- References
-
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47220.json
- https://access.redhat.com/security/cve/CVE-2026-47220
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47220.json
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-j9wh-4qfm-wf2v
- https://nvd.nist.gov/vuln/detail/CVE-2026-47220
- https://bugzilla.redhat.com/show_bug.cgi?id=2493652
Affected packages
Git / github.com/envoyproxy/envoy
Affected ranges
- Type
- GIT
- Repo
- https://github.com/envoyproxy/envoy
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "range": [ { "introduced": "1.37.0" }, { "fixed": "1.37.5" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "range": [ { "introduced": "1.38.0" }, { "fixed": "1.38.3" } ], "source": "CPE_RANGE" } ] }