CVE-2026-118650 Echo - Path Traversal

Echo < 4.16.0 and < 5.4.0 contain a path traversal caused by inconsistent decoding of encoded request paths between router and globally mounted static middleware, letting attackers access unintended files, exploit requires global static middleware usage.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Read, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-177

Vendor fix

Update to version 4.16.0 or 5.4.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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