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Public proof of conceptFix available

CVE-2022-40083

A public proof of concept exists; no exploitation attested.

  • Published2022-09-28
  • Fixed in4.9.0
  • WeaknessCWE-601

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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).

Timeline

dates in UTC
  1. 2022-09-2814:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-40083?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-40083?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
labstack/echo
BranchAffectedFixed in
4.9< 4.9.04.9.0
Labstack echo
BranchAffectedFixed in
4.8= 4.8.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • golang-github-labstack-echoUbuntu:26.10all versions · no fixed version listedand 1 other package
  • golang-github-labstack-echoUbuntu:26.04:LTSall versions · no fixed version listedand 1 other package
  • golang-github-labstack-echoUbuntu:25.10all versions · no fixed version listedand 1 other package
  • golang-github-labstack-echoUbuntu:24.04:LTSall versions · no fixed version listedand 1 other package
  • golang-github-labstack-echoUbuntu:22.04:LTSall versions · no fixed version listedand 3 other packages
  • golang-github-labstack-echoDebian:14all versions · fixed in 4.11.1-1
  • golang-github-labstack-echoDebian:13all versions · fixed in 4.11.1-1
  • golang-github-labstack-echoDebian:12all versions · no fixed version listed

2 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update labstack/echo to 4.9.0

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
2022-09-28
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-crxj-hrmp-4rwf

Frequently asked questions

What is CVE-2022-40083?

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).

Is CVE-2022-40083 actively exploited?

A proof-of-concept exploit exists for CVE-2022-40083, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-40083?

CVE-2022-40083 has a CVSS v3 base score of 9.6 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

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Sources for this record