CVE-2023-32731
gRPC: sensitive information disclosure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 9, 2023
Updated · August 7, 2026
Description
A flaw was found in gRPC. This flaw allows a remote attacker to obtain sensitive information, caused by a flaw when the gRPC HTTP2 stack raised a header size exceeded error. By sending a specially crafted request, an attacker can obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE-440 · Expected Behavior Violation