CVE-2026-118655

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Source
https://cve.org/CVERecord?id=CVE-2026-118655
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118655.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-118655
Aliases
Downstream
Published
2026-10-28T20:03:56Z
Modified
2026-10-29T10:45:54Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Echo: Static Middleware Double-Unescape Path Traversal
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-174"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118655.json"
}
References

Affected packages

Git / github.com/labstack/echo

Affected ranges

Type
GIT
Repo
https://github.com/labstack/echo
Events
Introduced
9500f2745481e2dff1313e2e6734c488e80c13fb
Fixed
5786024ea4d85c01784796e8aa7aac53e007b39b
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8800212ad4392d3f5af052f3042aca62cc5911a7
Fixed
a9ede66a5a7196411131beb1ee801e75bbaf7ac6
Fixed
c3fa2a27ff92b2b8db360de614f999ef1da24725
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "5.0.0"
                },
                {
                    "fixed":  "5.2.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "4.15.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "a9ede66a5a7196411131beb1ee801e75bbaf7ac6"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "c3fa2a27ff92b2b8db360de614f999ef1da24725"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v4.15.3",
            "range":  [
                {
                    "fixed":  "8800212ad4392d3f5af052f3042aca62cc5911a7"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v5.2.0",
            "range":  [
                {
                    "fixed":  "5786024ea4d85c01784796e8aa7aac53e007b39b"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

2.*
2.0.0-alpha
3.*
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.3.0
3.3.1
3.3.2
3.3.3
3.3.4
v0.*
v0.0.10
v0.0.11
v0.0.12
v0.0.13
v0.0.14
v0.0.15
v0.0.16
v0.0.2
v0.0.4
v0.0.5
v0.0.6
v0.0.7
v0.0.8
v0.0.9
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3
v2.*
v2.0.0
v2.0.0-apha.1
v2.0.0-apha.2
v2.0.0-apha1
v2.0.0-beta.1
v2.0.0-beta.2
v2.0.1
v2.0.2
v3.*
v3.0.0
v3.0.0-beta.1
v3.0.0-beta.2
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v3.1.0-rc.1
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5
v3.2.6
v3.3.0
v3.3.1
v3.3.10
v3.3.2
v3.3.3
v3.3.4
v3.3.5-retag
v3.3.6-retag
v3.3.7-retag
v3.3.8-retag
v3.3.9
v4.*
v4.0.0
v4.1.0
v4.1.1
v4.1.10
v4.1.11
v4.1.12
v4.1.13
v4.1.14
v4.1.15
v4.1.16
v4.1.17
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.1.7
v4.1.8
v4.1.9
v4.10.0
v4.10.1
v4.10.2
v4.11.0
v4.11.1
v4.11.2
v4.11.3
v4.11.4
v4.12.0
v4.13.0
v4.13.1
v4.13.2
v4.13.3
v4.13.4
v4.14.0
v4.15.0
v4.15.1
v4.15.2
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v4.4.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.7.0
v4.7.1
v4.7.2
v4.8.0
v4.9.0
v4.9.1
v5.*
v5.0.0
v5.0.1
v5.0.2
v5.0.3
v5.0.4
v5.1.0
v5.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118655.json"