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DEBIAN-CVE-2026-55677

Type: advisorySource: OSV1 source record

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path (preserving %2F as-is), while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an attacker to bypass route-level access controls and read static files without authorization. This vulnerability is fixed in 4.15.3 and 5.2.0.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-55677

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-55677

golang-github-labstack-echo

Source reference: /affected/0/package/name

Affected versions
4.11.1-1

Source reference: /affected/0/versions

4.11.1-2

Source reference: /affected/0/versions

4.12.0-1

Source reference: /affected/0/versions

4.2.1-3

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

golang-github-labstack-echo

Source reference: /affected/1/package/name

Affected versions
4.12.0-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

golang-github-labstack-echo

Source reference: /affected/2/package/name

Affected versions
4.12.0-1

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-github-labstack-echo",
      "purl": "pkg:deb/debian/golang-github-labstack-echo?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "4.11.1-1",
      "4.11.1-2",
      "4.12.0-1",
      "4.2.1-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55677.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-github-labstack-echo",
      "purl": "pkg:deb/debian/golang-github-labstack-echo?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "4.12.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55677.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-github-labstack-echo",
      "purl": "pkg:deb/debian/golang-github-labstack-echo?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "4.12.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55677.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57394 · Revision 1
Added to Heist Feed
Publisher date
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