CVE-2026-118652: Golang github labstack echo.v2 · Echo is a Go web framework
Affects golang-github-labstack-echo.v2Source GCVE Database
Not known to be exploited · CVSS 6.1 Medium · fixed in 4.16.0 : update golang-github-labstack-echo.v2 when convenient.
Data as of 5 Nov 2026, 12:35 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.1 |
|---|
- Patch
- Available – fixed in 4.16.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10golang-github-labstack-echopkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgolang-github-labstack-echopkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-github-labstack-echopkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgolang-github-labstack-echopkg:deb/ubuntu/golang-github-labstack-echo?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgolang-github-labstack-echo.v2pkg:deb/ubuntu/golang-github-labstack-echo.v2?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgolang-github-labstack-echo.v3pkg:deb/ubuntu/golang-github-labstack-echo.v3?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Context.JSONP and Context.JSONPBlob concatenate an unvalidated callback value into a JavaScript response. A route that passes attacker-controlled input as the callback can return executable script syntax, allowing reflected cross-site scripting when a user loads the crafted response. The vulnerable jsonPBlob path performs no callback validation or escaping, and exploitation requires an application route that exposes attacker control over the callback argument. This issue is fixed in 4.16.0 and 5.4.0.
References
- ubuntu.com/security/CVE-2026-118652 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-118652 (opens in a new tab)
- github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1 (opens in a new tab)
- github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af (opens in a new tab)
- github.com/labstack/echo/releases/tag/v4.16.0 (opens in a new tab)
- github.com/labstack/echo/releases/tag/v5.4.0 (opens in a new tab)
- github.com/labstack/echo/security/advisories/GHSA-h9g5-28mm-hx3g (opens in a new tab)