Vulnerability Database

296,137

Total vulnerabilities in the database

CVE-2024-7246

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.

  • Published: Aug 6, 2024
  • Updated: Jul 23, 2025
  • CVE: CVE-2024-7246
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

No CWE or OWASP classifications available.

Software From Fixed in
grpc / grpc - 1.58.3
grpc / grpc 1.59.0 1.59.5
grpc / grpc 1.60.0 1.60.2
grpc / grpc 1.61.0 1.61.3
grpc / grpc 1.62.0 1.62.3
grpc / grpc 1.63.0 1.63.2
grpc / grpc 1.64.0 1.64.3
grpc / grpc 1.65.0 1.65.4