CVE-2026-73547
- Source
- https://cve.org/CVERecord?id=CVE-2026-73547
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73547.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-73547
- Aliases
-
- GHSA-87ph-jqwm-pg6r
- Downstream
- Related
- Published
- 2026-09-21T19:47:54Z
- Modified
- 2026-09-24T03:45:44Z
- 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 ext_authz: request `:path` pseudoheader dereferenced w/o null check
- Details
-
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ext_authz filter assumes that a request contains a :path pseudoheader when applying query_parameters_to_set or query_parameters_to_remove from an authorization response. A path-less CONNECT request makes request_headers_->Path() return null, and Filter::onComplete dereferences that pointer while parsing the query string. An unauthenticated downstream client can crash the Envoy process when the filter and authorization response use query-parameter mutation. The relevant scope boundary is that the deployment must accept path-less CONNECT and configure ext_authz query-parameter mutation. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-476" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73547.json" }- References
-
- https://github.com/envoyproxy/envoy/releases/tag/v1.36.10
- https://github.com/envoyproxy/envoy/releases/tag/v1.37.6
- https://github.com/envoyproxy/envoy/releases/tag/v1.38.4
- https://github.com/envoyproxy/envoy/releases/tag/v1.39.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73547.json
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-87ph-jqwm-pg6r
- https://nvd.nist.gov/vuln/detail/CVE-2026-73547
- https://github.com/envoyproxy/envoy/commit/064af2e61d0d1c421490d9e3e6e643c5d117ffe4
- https://github.com/envoyproxy/envoy/commit/5f3b8e9b2b8a787a63202d35bb38820f3e9271fe
- https://github.com/envoyproxy/envoy/commit/838f8ffd9d7b5217682a22ee33470d4c7afb7e98
- https://github.com/envoyproxy/envoy/commit/c3170d7c747e51bb8254378ea89afc03d3e71929
Affected packages
Git / github.com/envoyproxy/envoy
Affected ranges
- Type
- GIT
- Repo
- https://github.com/envoyproxy/envoy
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedIntroducedIntroducedIntroducedFixedFixedFixedFixedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.36.10" }, { "introduced": "1.37.0" }, { "fixed": "1.37.6" }, { "introduced": "1.38.0" }, { "fixed": "1.38.4" }, { "introduced": "1.39.0" }, { "fixed": "1.39.1" } ], "source": [ "AFFECTED_FIELD", "REFERENCES" ] }