| 标题 | Envoy >= 1.33.0 Injection (CWE-74) |
|---|
| 描述 | The header_mutation filter's query_parameter_mutations feature inserts values from formatters (such as %REQ(header)%) into query strings without URL encoding. Attacker-controlled header values containing & or = characters inject arbitrary query parameters. For example, a header value of legit&admin=true results in two query parameters instead of one. Other Envoy filters (OAuth2, gRPC transcoder) correctly use PercentEncoding::urlEncode() for this same operation. Root cause at header_mutation.cc:22 (params.add() without encoding) and utility.cc:1156 (toString() outputs raw values). Fix adds URL encoding controlled by runtime guard envoy.reloadable_features.header_mutation_url_encode_query_params.
https://github.com/envoyproxy/envoy/pull/43502 (merged 2026-02-18). Vendor contacted, acknowledged, and fixed. No CVE assigned. Not submitted to another CNA. |
|---|
| 来源 | ⚠️ https://github.com/envoyproxy/envoy/pull/43502 |
|---|
| 用户 | lukefr09 (UID 97110) |
|---|
| 提交 | 2026-04-04 22時31分 (23 日前) |
|---|
| 管理 | 2026-04-24 21時49分 (20 days later) |
|---|
| 状态 | 已接受 |
|---|
| VulDB条目 | 359546 [Envoy 直到 1.33.0 Query Parameter header_mutation.cc params.add 权限提升] |
|---|
| 积分 | 20 |
|---|