Labstack Echo v4.8.0 was discovered to contain an open redirect vulnerability via the…
Priority HIGH 76CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
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).
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03238 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/labstack/echo/v4 (Go): 4.9.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/labstack/echo/v4 (Go) | before 4.9.0 | 4.9.0 | Patch available | GHSA-crxj-hrmp-4rwf |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/labstack/echo/v4 (Go) Vendor— Affected before 4.9.0 Fixed in 4.9.0 Patch available GHSA-crxj-hrmp-4rwf
Remediation
- Fix · GHSA-crxj-hrmp-4rwf github.com/labstack/echo/v4 (Go) Fixed in 4.9.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-40083
- 2026-10-03 Alias added: GHSA-crxj-hrmp-4rwf
References
Other 6
- https://github.com/labstack/echo/pull/2260
- https://github.com/labstack/echo/pull/2260/commits/3154abd1401554fe4d1c09ec550506d8625fc042
- https://github.com/labstack/echo/commit/0ac4d74402391912ff6da733bb09fd4c3980b4e1
- https://github.com/labstack/echo
- https://github.com/labstack/echo/releases/tag/v4.9.0
- https://pkg.go.dev/vuln/GO-2022-1031
More labstack Echo vulnerabilities
- TI-2026-20833 Echo has a Windows path traversal via backslash in middleware.Static default filesystem CVSS 3.1MEDIUM 5.3
- TI-2020-18793 Directory traversal on Windows in github.com/labstack/echo/v4 CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-40083 · CVE Program
- CVE-2022-40083 · NVD
- FIRST EPSS
- GHSA-crxj-hrmp-4rwf · GitHub Advisory Database · CC BY 4.0
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