CVE-2024-7246
Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
06/08/2024
Last modified:
22/07/2025
Description
It&#39;s possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It&#39;s also possible to use this vulnerability to leak other clients HTTP header keys, but not values.<br />
<br />
This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table.<br />
<br />
Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.
Impact
Base Score 4.0
6.30
Severity 4.0
MEDIUM
Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.58.3 (excluding) | |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.59.0 (including) | 1.59.5 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.60.0 (including) | 1.60.2 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.61.0 (including) | 1.61.3 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.62.0 (including) | 1.62.3 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.63.0 (including) | 1.63.2 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.64.0 (including) | 1.64.3 (excluding) |
| cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:* | 1.65.0 (including) | 1.65.4 (excluding) |
To consult the complete list of CPE names with products and versions, see this page