Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-118655 Details

Description

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, middleware.Static can decode an already decoded Request.URL.Path a second time. Double-encoded separators can consequently be reconstructed before filesystem resolution. This can reach a file under a guarded route when the static middleware is registered globally. This issue is fixed in 4.15.3 and 5.2.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6 [email protected]
https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725 [email protected]
https://github.com/labstack/echo/issues/2599 [email protected]
https://github.com/labstack/echo/pull/3006 [email protected]
https://github.com/labstack/echo/releases/tag/v4.15.3 [email protected]

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-174Double Decoding of the Same Data[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-118655
NVD Published Date:
Oct 28, 2026
NVD Last Modified:
Oct 29, 2026
Source:
[email protected]
CVE-2026-118655 Details - Not Deferred