CVE-2026-33811

Published: Mag 07, 2026 Last Modified: Mag 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

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
0,0002
Percentile
0,0th
Updated

EPSS Score Trend (Last 5 Days)

415

Double Free

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
Application

Go by Golang

Product Information
Vendor Golang
Product Go
Version Range Affected
To 1.25.10 (exclusive)
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Go by Golang

Product Information
Vendor Golang
Product Go
Version Range Affected
From 1.26.0 (inclusive)
To 1.26.3 (exclusive)
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://go.dev/cl/767860
https://go.dev/cl/767860
https://go.dev/issue/78803
https://go.dev/issue/78803
https://groups.google.com/g/golang-announce/c/qcCIEXso47M
https://groups.google.com/g/golang-announce/c/qcCIEXso47M
https://pkg.go.dev/vuln/GO-2026-4981
https://pkg.go.dev/vuln/GO-2026-4981