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Critical

stoatchat before 0.13.5 Unauthenticated SSRF via proxy and embed endpoints

Type: advisorySource: Official CVE List1 source record

stoatchat before 0.13.5 contains an unauthenticated server-side request forgery vulnerability in the /proxy and /embed endpoints that accept arbitrary URLs without DNS resolution filtering or private IP range validation. Attackers can enumerate internal services, fingerprint applications, and reach instance metadata endpoints by supplying malicious URLs or leveraging redirect chains to access internal infrastructure.

Announced Group revision 1
Original source ↗

CVE-2026-63306

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: cve:CVE-2026-63306

stoatchat

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
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.

[
  {
    "vendor": "stoatchat",
    "product": "stoatchat",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "0.13.5",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "0.13.5",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:github/stoatchat/stoatchat",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-63306

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#12992 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement