🛡️ CVE-2024-7246
🟡 CVSS 5.3 — Medium ⚠️ Exploit Public CWE-440 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

It'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's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. 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. 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.

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE CWE-440
Public Exploit ⚠️ Yes
Source NVD
Published 2024-08-06
Updated 2026-06-02
Modified 2025-07-22

Affected Packages

Software From version Fixed in
grpc 1.65.0 1.65.4

References

Exploit, Issue Tracking, Patch https://github.com/grpc/grpc/issues/36245

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