CVE-2026-84445
- Source
- https://cve.org/CVERecord?id=CVE-2026-84445
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-84445.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-84445
- Aliases
- Downstream
- Related
- Published
- 2026-09-14T16:11:41Z
- Modified
- 2026-09-15T03:47:30Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- gRPC-Go: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers in the xDS servers
- Details
-
gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer() allow internal/transport/http2_server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go assumes that an authority value exists and indexes the empty slice. A remote client that can complete transport connection establishment can trigger an index-out-of-bounds panic that is not recovered by the per-RPC goroutine and terminates the entire server process. In insecure or ordinary TLS deployments the request can be unauthenticated, while strict mTLS or ALTS deployments require valid transport credentials before the malformed RPC can reach the interceptor. This issue is fixed in versions 1.82.2 and 1.83.2.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-129", "CWE-248" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84445.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84445.json
- https://github.com/grpc/grpc-go/commit/3822494d8ea03b992c089fd2a195f041762fffb7
- https://github.com/grpc/grpc-go/commit/8668b69c167df908b6b3666dcbf40992b9e932a4
- https://github.com/grpc/grpc-go/commit/93e31b48545e2a8aaeb6e06b47fb249f94e6297f
- https://github.com/grpc/grpc-go/issues/9354
- https://github.com/grpc/grpc-go/pull/9365
- https://github.com/grpc/grpc-go/pull/9366
- https://github.com/grpc/grpc-go/pull/9367
- https://github.com/grpc/grpc-go/releases/tag/v1.82.2
- https://github.com/grpc/grpc-go/releases/tag/v1.83.2
- https://github.com/grpc/grpc-go/security/advisories/GHSA-2v4p-qf9q-27wj
- https://nvd.nist.gov/vuln/detail/CVE-2026-84445
Affected packages
Git / github.com/grpc/grpc-go
Affected ranges
- Type
- GIT
- Repo
- https://github.com/grpc/grpc-go
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.82.2" }, { "introduced": "1.83.0" }, { "fixed": "1.83.2" } ], "source": "AFFECTED_FIELD" }