← Back to CVE Explorer

CVE-2026-109823

Full vulnerability record from the local CVENow database.

Description

An attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar. Neither response checks the Host header. A web page that rebinds its own domain to the loopback address can therefore read the tag with a same-origin request, which carries no Origin header. The paths usually reveal the local username and the project layout. This issue affects tidewave: from 0.8.0 before 0.9.2.

Severity
LOW
CVSS score
2.3 (v4.0)
Vulnerability status
Received
Source identifier
6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Published
2026-10-27 16:17:29.157000
Last modified
2026-10-27 16:17:29.157000
View original CVE JSON 
{
  "id": "CVE-2026-109823",
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "published": "2026-10-27T16:17:29.157",
  "lastModified": "2026-10-27T16:17:29.157",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar.\n\nNeither response checks the Host header. A web page that rebinds its own domain to the loopback address can therefore read the tag with a same-origin request, which carries no Origin header. The paths usually reveal the local username and the project layout.\n\nThis issue affects tidewave: from 0.8.0 before 0.9.2."
    }
  ],
  "affected": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "affectedData": [
        {
          "vendor": "tidewave-ai",
          "product": "tidewave",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.hex.pm",
          "packageName": "tidewave",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "'Elixir.Tidewave'",
            "'Elixir.Tidewave.Router'"
          ],
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "'Elixir.Tidewave':tidewave_config_meta/1"
            },
            {
              "name": "'Elixir.Tidewave':call/2"
            },
            {
              "name": "'Elixir.Tidewave.Router':call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "packageURL": "pkg:hex/tidewave",
          "versions": [
            {
              "version": "0.8.0",
              "lessThan": "0.9.2",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "tidewave-ai",
          "product": "tidewave",
          "defaultStatus": "unaffected",
          "collectionURL": "https://github.com",
          "packageName": "tidewave-ai/tidewave_phoenix",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "'Elixir.Tidewave'",
            "'Elixir.Tidewave.Router'"
          ],
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "'Elixir.Tidewave':tidewave_config_meta/1"
            },
            {
              "name": "'Elixir.Tidewave':call/2"
            },
            {
              "name": "'Elixir.Tidewave.Router':call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "packageURL": "pkg:github/tidewave-ai/tidewave_phoenix",
          "versions": [
            {
              "version": "f78352b56d19cd4ae49999aa385011cef73e8b93",
              "lessThan": "80159536f752dc4d34797934d1516f29cea12b50",
              "versionType": "git",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "userInteraction": "PASSIVE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://cna.erlef.org/cves/CVE-2026-109823.html",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/80159536f752dc4d34797934d1516f29cea12b50",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/f78352b56d19cd4ae49999aa385011cef73e8b93",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-109823",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ]
}