Echo
CVE-2022-40083
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Redirect URL validation
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.6 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could redirect users to malicious websites via URL manipulation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Labstack Echo v4.8.0 was discovered to contain an open redirect vulnerability via the Static Handler component. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate redirect destinations against an allowlist, avoid using user input in redirect URLs.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Open Redirect (CWE-601), which allows attackers to redirect users to malicious websites via URL manipulation. Labstack Echo v4.8.0 was discovered to contain an open redirect vulnerability via the Static Handler component. This vulnerability can be leveraged by attackers to cause a Server-Side Request Forgery (SSRF). Affected products include: Labstack Echo.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Labstack Echo v4.8.0 was discovered to contain an open redirect vulnerability via the Static Handler component. This vulnerability can be leveraged by attackers to cause a Server-Side Request Forgery (SSRF).
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Affected Products (CPE)NVD
An issue in Inspect Element Ltd Echo.ac v.5.2.1.0 allows a local attacker to gain privileges via a crafted command to th
Unauthenticated remote file read in Echo web framework versions 5.0.0-5.0.2 on Windows allows attackers to traverse outs
Path-based access control bypass in the LabStack Echo Go web framework (versions prior to 4.15.3 and 5.2.0) lets remote
An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to
An open redirect in the Go web framework Echo lets an attacker craft a link on a trusted domain that sends victims to an
Spoofed forwarded-scheme headers let remote clients defeat Echo's HTTPS enforcement: Context.Scheme() in LabStack Echo b
CSRF protection in Labstack Echo can be skipped entirely when the MethodOverride middleware rewrites a POST to a safe me
Echo's WWWRedirect() and NonWWWRedirect() middlewares build the Location header from Context.Scheme(), which returns the
The Echo extension for MediWiki does not properly implement the hideuser functionality, which allows remote authenticate
Sensitive notification data is exposed to authenticated but unauthorized actors through the Echo extension's API layer i
Exploit-DB