Envoy: Path normalization does not handle dot and dotdot segments with parameters
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
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| envoyproxy | envoy | affected |
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Configuration 1 [-]
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No data.
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| Envoyproxy | Envoy |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.527% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
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| Metrics |
ssvc
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| Description | No description is available for this CVE. | 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 URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefore not canonicalized to /admin even when path normalization is enabled. If an upstream interprets the segment according to RFC 3986 while Envoy applies routing or RBAC to the uncollapsed path, a remote client can cause path confusion and bypass path-based security policy. The relevant scope boundary is that the security consequence depends on a downstream/upstream path interpretation mismatch or a path-based Envoy decision. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1. |
| Title | envoy: envoy: path normalization bypass via dot/dot-dot segments with parameters | Envoy: Path normalization does not handle dot and dotdot segments with parameters |
| Weaknesses | CWE-647 | |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Envoyproxy
Envoyproxy envoy |
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| Vendors & Products |
Envoyproxy
Envoyproxy envoy |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | No description is available for this CVE. | |
| Title | envoy: envoy: path normalization bypass via dot/dot-dot segments with parameters | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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