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CVE-2022-40083

42
FAUCET Score

CVE-2022-40083 describes an open redirect vulnerability in Labstack Echo v4.8.0's Static Handler component, which can be abused to facilitate Server-Side Request Forgery (SSRF) attacks. This critical vulnerability carries a CVSS score of 9.6, indicating a high impact on confidentiality, integrity, and availability, with a low attack complexity and requiring user interaction. While not currently listed in CISA's KEV catalog, a Nuclei template exists for detection, and its high EPSS score suggests a significant likelihood of exploitation. Despite its severity, there is currently no evidence of active exploitation, public exploit code (beyond Nuclei), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.8.0CPE matchmatch criteria
cpe:2.3:a:labstack:echo:4.8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.33%
Probability of exploitation in next 30 days
EPSS Percentile
81.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2022-40083 · Oct 7, 2022
This CVE's current EPSS score of 0.0233 is in the 86th percentile among its peer group of 834 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/labstack/echo/v4Fixed in: 4.9.0

Vendor Advisories (1)

goGHSA-crxj-hrmp-4rwfcritical

Labstack Echo Open Redirect vulnerability

Sep 29, 2022

References

github.com / labstack/echo/issues/2259
ExploitIssue TrackingPatchThird Party Advisory