Resource exhaustion in grpc-go - #VU144260
Published: August 19, 2026
Vulnerability identifier: #VU144260
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the HTTP/2 transport server implementation when handling rapid client-initiated stream creation and reset sequences. A remote attacker can send a rapid flood of HEADERS followed by RST_STREAM frames to cause a denial of service.
The condition bypasses the HTTP/2 Rapid Reset mitigation because queued control buffer items do not count against the transport response frame threshold, leading to high CPU consumption.
Affected software
grpc-go
Remediation
Install security update from vendor's website.
grpc-go - update to 1.82.1