Vulnerability-Lookup

CVE-2026-109823 (GCVE-0-2026-109823)

Vulnerability from cvelistv5 – Published: 2026-10-27 15:47 – Updated: 2026-10-27 15:47

Title

Host filesystem path disclosure via DNS rebinding

Summary

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

2.3 (Low)


                        
                          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

CWE

CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere

Assigner

EEF CNA under the mitre root

CNA scorecard A 97/100 over 341 records in the last 180 days details

References

4 references

URL	Tags
https://cna.erlef.org/cves/CVE-2026-109823.html	relatedthird-party-advisory
https://osv.dev/vulnerability/EEF-CVE-2026-109823	related
https://github.com/tidewave-ai/tidewave_phoenix/c…	related
https://github.com/tidewave-ai/tidewave_phoenix/c…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
tidewave-ai	tidewave	Affected: 0.8.0 , < 0.9.2 (semver) cpe:2.3:a:tidewave-ai:tidewave::::::::
tidewave-ai	tidewave	Affected: f78352b56d19cd4ae49999aa385011cef73e8b93 , < 80159536f752dc4d34797934d1516f29cea12b50 (git) cpe:2.3:a:tidewave-ai:tidewave::::::::

Credits

Neil Berkman Neil Berkman Jonatan Männchen / EEF

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Tidewave\u0027",
            "\u0027Elixir.Tidewave.Router\u0027"
          ],
          "packageName": "tidewave",
          "packageURL": "pkg:hex/tidewave",
          "product": "tidewave",
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
            },
            {
              "name": "\u0027Elixir.Tidewave\u0027:call/2"
            },
            {
              "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "vendor": "tidewave-ai",
          "versions": [
            {
              "lessThan": "0.9.2",
              "status": "affected",
              "version": "0.8.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Tidewave\u0027",
            "\u0027Elixir.Tidewave.Router\u0027"
          ],
          "packageName": "tidewave-ai/tidewave_phoenix",
          "packageURL": "pkg:github/tidewave-ai/tidewave_phoenix",
          "product": "tidewave",
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
            },
            {
              "name": "\u0027Elixir.Tidewave\u0027:call/2"
            },
            {
              "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "vendor": "tidewave-ai",
          "versions": [
            {
              "lessThan": "80159536f752dc4d34797934d1516f29cea12b50",
              "status": "affected",
              "version": "f78352b56d19cd4ae49999aa385011cef73e8b93",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.9.2",
                  "versionStartIncluding": "0.8.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Neil Berkman"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Neil Berkman"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Jonatan M\u00e4nnchen / EEF"
        }
      ],
      "dateAssigned": "2026-10-23T13:15:52.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar.\u003c/p\u003e\n\u003cp\u003eNeither response checks the \u003ccode\u003eHost\u003c/code\u003e 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 \u003ccode\u003eOrigin\u003c/code\u003e header. The paths usually reveal the local username and the project layout.\u003c/p\u003e\n\u003cp\u003eThis issue affects tidewave: from 0.8.0 before 0.9.2.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "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."
            }
          ],
          "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-170",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eA malicious web page that a developer visits while the Phoenix development server runs can learn the developer\u0027s username, project location, and dependency layout on disk. This information helps an attacker prepare further attacks against the machine.\u003c/p\u003e"
                },
                {
                  "base64": false,
                  "type": "text/markdown",
                  "value": "A malicious web page that a developer visits while the Phoenix development server runs can learn the developer\u0027s username, project location, and dependency layout on disk. This information helps an attacker prepare further attacks against the machine."
                }
              ],
              "value": "A malicious web page that a developer visits while the Phoenix development server runs can learn the developer\u0027s username, project location, and dependency layout on disk. This information helps an attacker prepare further attacks against the machine."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-497",
              "description": "CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T15:47:36.862Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "name": "EEF CNA record for CVE-2026-109823",
          "tags": [
            "related",
            "third-party-advisory"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-109823.html"
        },
        {
          "name": "OSV record EEF-CVE-2026-109823",
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-109823"
        },
        {
          "name": "Introducing commit f78352b in tidewave-ai/tidewave_phoenix",
          "tags": [
            "related"
          ],
          "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/f78352b56d19cd4ae49999aa385011cef73e8b93"
        },
        {
          "name": "Fix commit 8015953 in tidewave-ai/tidewave_phoenix",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/80159536f752dc4d34797934d1516f29cea12b50"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Host filesystem path disclosure via DNS rebinding",
      "x_proofOfConcept": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003col\u003e\n\u003cli\u003eRun a Phoenix or Plug application with \u003ccode\u003eplug Tidewave\u003c/code\u003e on \u003ccode\u003e127.0.0.1:4001\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eFrom a loopback peer, send \u003ccode\u003eGET /tidewave/connect\u003c/code\u003e with \u003ccode\u003eHost: attacker.example:4001\u003c/code\u003e and \u003ccode\u003eSec-Fetch-Site: same-origin\u003c/code\u003e, and no \u003ccode\u003eOrigin\u003c/code\u003e header. This is the request a DNS-rebound page makes.\u003c/li\u003e\n\u003cli\u003eThe server answers \u003ccode\u003e200 OK\u003c/code\u003e. The \u003ccode\u003etidewave:config\u003c/code\u003e meta tag contains the absolute project root and the dependency paths.\u003c/li\u003e\n\u003cli\u003eSend the same request to any HTML route of the application. The injected toolbar tag contains the same data.\u003c/li\u003e\n\u003c/ol\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "1. Run a Phoenix or Plug application with `plug Tidewave` on `127.0.0.1:4001`.\n2. From a loopback peer, send `GET /tidewave/connect` with `Host: attacker.example:4001` and `Sec-Fetch-Site: same-origin`, and no `Origin` header. This is the request a DNS-rebound page makes.\n3. The server answers `200 OK`. The `tidewave:config` meta tag contains the absolute project root and the dependency paths.\n4. Send the same request to any HTML route of the application. The injected toolbar tag contains the same data."
            }
          ],
          "value": "* Run a Phoenix or Plug application with plug Tidewave on 127.0.0.1:4001.\n* From a loopback peer, send GET /tidewave/connect with Host: attacker.example:4001 and Sec-Fetch-Site: same-origin, and no Origin header. This is the request a DNS-rebound page makes.\n* The server answers 200 OK. The tidewave:config meta tag contains the absolute project root and the dependency paths.\n* Send the same request to any HTML route of the application. The injected toolbar tag contains the same data."
        }
      ],
      "x_technicalAnalysis": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003e\u003cstrong\u003e1. Data collection.\u003c/strong\u003e \u003ccode\u003eTidewave.tidewave_config_meta/1\u003c/code\u003e builds a map with \u003ccode\u003eroot\u003c/code\u003e (\u003ccode\u003eTidewave.MCP.root()\u003c/code\u003e), \u003ccode\u003eframework.app_paths\u003c/code\u003e (\u003ccode\u003eMix.Project.deps_paths()\u003c/code\u003e), \u003ccode\u003ewsl_distro\u003c/code\u003e, and \u003ccode\u003ehost_path\u003c/code\u003e. It HTML-escapes the JSON encoding of the map into \u003ccode\u003e\u0026lt;meta name=\"tidewave:config\"\u0026gt;\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Exposure.\u003c/strong\u003e \u003ccode\u003eTidewave.Router.control_html/1\u003c/code\u003e serves the tag on \u003ccode\u003eGET /tidewave/connect\u003c/code\u003e. For all other routes, \u003ccode\u003eTidewave.call/2\u003c/code\u003e registers a \u003ccode\u003ebefore_send\u003c/code\u003e callback that injects the tag into every \u003ccode\u003etext/html\u003c/code\u003e response when \u003ccode\u003etoolbar: true\u003c/code\u003e.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Read access.\u003c/strong\u003e \u003ccode\u003echeck_origin/2\u003c/code\u003e accepts any request without an \u003ccode\u003eOrigin\u003c/code\u003e header, and no code validates \u003ccode\u003eHost\u003c/code\u003e. After DNS rebinding, the browser sends a same-origin \u003ccode\u003eGET\u003c/code\u003e from a loopback peer.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "**1. Data collection.** `Tidewave.tidewave_config_meta/1` builds a map with `root` (`Tidewave.MCP.root()`), `framework.app_paths` (`Mix.Project.deps_paths()`), `wsl_distro`, and `host_path`. It HTML-escapes the JSON encoding of the map into `\u003cmeta name=\"tidewave:config\"\u003e`.\n\n**2. Exposure.** `Tidewave.Router.control_html/1` serves the tag on `GET /tidewave/connect`. For all other routes, `Tidewave.call/2` registers a `before_send` callback that injects the tag into every `text/html` response when `toolbar: true`.\n\n**3. Read access.** `check_origin/2` accepts any request without an `Origin` header, and no code validates `Host`. After DNS rebinding, the browser sends a same-origin `GET` from a loopback peer."
            }
          ],
          "value": "1. Data collection. Tidewave.tidewave_config_meta/1 builds a map with root (Tidewave.MCP.root()), framework.app_paths (Mix.Project.deps_paths()), wsl_distro, and host_path. It HTML-escapes the JSON encoding of the map into \u003cmeta name=\"tidewave:config\"\u003e.\n\n2. Exposure. Tidewave.Router.control_html/1 serves the tag on GET /tidewave/connect. For all other routes, Tidewave.call/2 registers a before_send callback that injects the tag into every text/html response when toolbar: true.\n\n3. Read access. check_origin/2 accepts any request without an Origin header, and no code validates Host. After DNS rebinding, the browser sends a same-origin GET from a loopback peer."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-109823",
    "datePublished": "2026-10-27T15:47:36.862Z",
    "dateReserved": "2026-10-23T13:00:02.150Z",
    "dateUpdated": "2026-10-27T15:47:36.862Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-109823",
      "date": "2026-10-29",
      "epss": "0.00368",
      "percentile": "0.30561"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://repo.hex.pm",
                "cpes": [
                  "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "modules": [
                  "\u0027Elixir.Tidewave\u0027",
                  "\u0027Elixir.Tidewave.Router\u0027"
                ],
                "packageName": "tidewave",
                "packageURL": "pkg:hex/tidewave",
                "product": "tidewave",
                "programFiles": [
                  "lib/tidewave.ex",
                  "lib/tidewave/router.ex"
                ],
                "programRoutines": [
                  {
                    "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
                  },
                  {
                    "name": "\u0027Elixir.Tidewave\u0027:call/2"
                  },
                  {
                    "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
                  }
                ],
                "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
                "vendor": "tidewave-ai",
                "versions": [
                  {
                    "lessThan": "0.9.2",
                    "status": "affected",
                    "version": "0.8.0",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "collectionURL": "https://github.com",
                "cpes": [
                  "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "modules": [
                  "\u0027Elixir.Tidewave\u0027",
                  "\u0027Elixir.Tidewave.Router\u0027"
                ],
                "packageName": "tidewave-ai/tidewave_phoenix",
                "packageURL": "pkg:github/tidewave-ai/tidewave_phoenix",
                "product": "tidewave",
                "programFiles": [
                  "lib/tidewave.ex",
                  "lib/tidewave/router.ex"
                ],
                "programRoutines": [
                  {
                    "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
                  },
                  {
                    "name": "\u0027Elixir.Tidewave\u0027:call/2"
                  },
                  {
                    "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
                  }
                ],
                "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
                "vendor": "tidewave-ai",
                "versions": [
                  {
                    "lessThan": "80159536f752dc4d34797934d1516f29cea12b50",
                    "status": "affected",
                    "version": "f78352b56d19cd4ae49999aa385011cef73e8b93",
                    "versionType": "git"
                  }
                ]
              }
            ],
            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
          }
        ],
        "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."
          }
        ],
        "id": "CVE-2026-109823",
        "lastModified": "2026-10-28T15:24:56.033",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 2.3,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "PASSIVE",
                "valueDensity": "NOT_DEFINED",
                "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",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-27T16:17:29.157",
        "references": [
          {
            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "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"
          }
        ],
        "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-497"
              }
            ],
            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

FKIE_CVE-2026-109823

Vulnerability from fkie_nvd - Published: 2026-10-27 16:17 - Updated: 2026-10-27 16:17

Severity

2.3 (Low) - 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

Summary

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-109823.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/tidewave-ai/tidewave_phoenix/commit/80159536f752dc4d34797934d1516f29cea12b50
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/tidewave-ai/tidewave_phoenix/commit/f78352b56d19cd4ae49999aa385011cef73e8b93
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-109823

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Tidewave\u0027",
            "\u0027Elixir.Tidewave.Router\u0027"
          ],
          "packageName": "tidewave",
          "packageURL": "pkg:hex/tidewave",
          "product": "tidewave",
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
            },
            {
              "name": "\u0027Elixir.Tidewave\u0027:call/2"
            },
            {
              "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "vendor": "tidewave-ai",
          "versions": [
            {
              "lessThan": "0.9.2",
              "status": "affected",
              "version": "0.8.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:tidewave-ai:tidewave:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Tidewave\u0027",
            "\u0027Elixir.Tidewave.Router\u0027"
          ],
          "packageName": "tidewave-ai/tidewave_phoenix",
          "packageURL": "pkg:github/tidewave-ai/tidewave_phoenix",
          "product": "tidewave",
          "programFiles": [
            "lib/tidewave.ex",
            "lib/tidewave/router.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Tidewave\u0027:tidewave_config_meta/1"
            },
            {
              "name": "\u0027Elixir.Tidewave\u0027:call/2"
            },
            {
              "name": "\u0027Elixir.Tidewave.Router\u0027:call/2"
            }
          ],
          "repo": "https://github.com/tidewave-ai/tidewave_phoenix",
          "vendor": "tidewave-ai",
          "versions": [
            {
              "lessThan": "80159536f752dc4d34797934d1516f29cea12b50",
              "status": "affected",
              "version": "f78352b56d19cd4ae49999aa385011cef73e8b93",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-109823",
  "lastModified": "2026-10-27T16:17:29.157",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-27T16:17:29.157",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "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"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

GHSA-CW46-9GF7-56P5

Vulnerability from github – Published: 2026-10-27 18:31 – Updated: 2026-10-27 18:31

Details

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

2.3 (Low)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-109823"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-497"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-27T16:17:29Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-cw46-9gf7-56p5",
  "modified": "2026-10-27T18:31:34Z",
  "published": "2026-10-27T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109823"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/80159536f752dc4d34797934d1516f29cea12b50"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tidewave-ai/tidewave_phoenix/commit/f78352b56d19cd4ae49999aa385011cef73e8b93"
    },
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-109823.html"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-109823"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-109823 (GCVE-0-2026-109823)

FKIE_CVE-2026-109823

GHSA-CW46-9GF7-56P5

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour