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Vulnerabilities in handler/placeholder layer in github.com/caddyserver/caddy

Type: advisorySource: OSV1 source record

Rewrite placeholder re-expansion, unbounded body buffer DoS, and fileHidden case-sensitivity bypass in github.com/caddyserver/caddy

Announced Source revision 1
Original source ↗

GO-2026-6512

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:GO-2026-6512

github.com/caddyserver/caddy/v2

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.11.4

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.11.4"
          }
        ]
      }
    ],
    "package": {
      "name": "github.com/caddyserver/caddy/v2",
      "purl": "pkg:golang/github.com/caddyserver/caddy/v2",
      "ecosystem": "Go"
    },
    "database_specific": {
      "source": "https://vuln.go.dev/ID/GO-2026-6512.json"
    },
    "ecosystem_specific": {
      "imports": [
        {
          "path": "github.com/caddyserver/caddy/v2/modules/caddyhttp/rewrite",
          "symbols": [
            "Rewrite.Provision",
            "Rewrite.Rewrite",
            "Rewrite.ServeHTTP",
            "queryOpsReplacement.Provision"
          ]
        }
      ]
    }
  }
]
Related CVEs
CVE-2026-77281

Source reference: /aliases

CVE-2026-92284

Source reference: /aliases

CVE-2026-92700

Source reference: /aliases

Publisher severity

No explicit severity was provided.

Event
#63897 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement