CVE-2026-78663

Published: Ott 09, 2026 Last Modified: Ott 09, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,1
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high

Description

AI Translation Available

The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0025
Percentile
0,1th
Updated

EPSS Score Trend (Last 3 Days)

675

Multiple Operations on Resource in Single-Operation Context

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Other
Applicable Platforms
All platforms may be affected
View CWE Details
https://go.dev/cl/847187
https://go.dev/cl/847187
https://go.dev/cl/847310
https://go.dev/cl/847310
https://go.dev/issue/81743
https://go.dev/issue/81743
https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs
https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs
https://pkg.go.dev/vuln/GO-2026-6612
https://pkg.go.dev/vuln/GO-2026-6612