{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64941",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-08-09T16:30:01.572Z",
        "datePublished": "2026-08-10T11:05:14.571Z",
        "dateUpdated": "2026-08-10T13:00:33.543Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Phoenix.LiveView'"
                    ],
                    "packageName": "phoenix_live_view",
                    "packageURL": "pkg:hex/phoenix_live_view",
                    "product": "phoenix_live_view",
                    "programFiles": [
                        "lib/phoenix_live_view.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Phoenix.LiveView':redirect/2"
                        },
                        {
                            "name": "'Elixir.Phoenix.LiveView':push_patch/2"
                        }
                    ],
                    "repo": "https://github.com/phoenixframework/phoenix_live_view",
                    "vendor": "phoenixframework",
                    "versions": [
                        {
                            "lessThan": "1.0.19",
                            "status": "affected",
                            "version": "0.5.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "1.1.33",
                            "status": "affected",
                            "version": "1.1.0-rc.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "1.2.9",
                            "status": "affected",
                            "version": "1.2.0-rc.0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Phoenix.LiveView'"
                    ],
                    "packageName": "phoenixframework/phoenix_live_view",
                    "packageURL": "pkg:github/phoenixframework/phoenix_live_view",
                    "product": "phoenix_live_view",
                    "programFiles": [
                        "lib/phoenix_live_view.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Phoenix.LiveView':redirect/2"
                        },
                        {
                            "name": "'Elixir.Phoenix.LiveView':push_patch/2"
                        }
                    ],
                    "repo": "https://github.com/phoenixframework/phoenix_live_view",
                    "vendor": "phoenixframework",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "0b8c733133466912f81adecaea72b6712370242e",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "1c164f83df0bb922dfff9c60d125da5b0cfd6619",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "2068b304d71907064b159b6bc60c5ad85a876ecf",
                                    "status": "unaffected"
                                }
                            ],
                            "lessThan": "*",
                            "status": "affected",
                            "version": "b20dba3f65a380b2e4868dae03397f13d2daa070",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>The application must pass an externally influenced value as <code>:to</code> to <code>redirect/2</code>, or to <code>push_patch/2</code> before 0.7.0, for example a <code>return_to</code> parameter carried through sign-in or a navigation target taken from a <code>handle_event/3</code> payload.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "The application must pass an externally influenced value as `:to` to `redirect/2`, or to `push_patch/2` before 0.7.0, for example a `return_to` parameter carried through sign-in or a navigation target taken from a `handle_event/3` payload."
                        }
                    ],
                    "value": "The application must pass an externally influenced value as :to to redirect/2, or to push_patch/2 before 0.7.0, for example a return_to parameter carried through sign-in or a navigation target taken from a handle_event/3 payload."
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.0.19",
                                    "versionStartIncluding": "0.5.0",
                                    "vulnerable": true
                                },
                                {
                                    "criteria": "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.1.33",
                                    "versionStartIncluding": "1.1.0-rc.0",
                                    "vulnerable": true
                                },
                                {
                                    "criteria": "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.2.9",
                                    "versionStartIncluding": "1.2.0-rc.0",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Eurico Nicacio"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Steffen Deusch"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "José Valim"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Jonatan Männchen / EEF"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>URL Redirection to Untrusted Site ('Open Redirect') vulnerability in phoenixframework phoenix_live_view allows an attacker to send a victim's browser to an origin of the attacker's choosing via a <code>:to</code> value containing ASCII tab, LF or CR.</p>\n<p><code>redirect/2</code> validates <code>:to</code> through the private <code>validate_local_url!/2</code> in <code>lib/phoenix_live_view.ex</code>, which is intended to guarantee the target is a path within the application. It rejects a leading <code>//</code> and any backslash, but not ASCII tab, LF or CR. Browsers strip those three characters before parsing a URL, so a value such as <code>/&lt;TAB&gt;/example.com</code> passes validation as a path and is then resolved as the scheme-relative URL <code>//example.com</code>. The live navigation functions share the guard but are not affected, because the client expands their target against the current origin. <code>push_patch/2</code> is also affected before 0.7.0, which is when that expansion was added.</p>\n<p>This issue affects phoenix_live_view: from 0.5.0 before 1.0.19, from 1.1.0-rc.0 before 1.1.33, and from 1.2.0-rc.0 before 1.2.9.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "URL Redirection to Untrusted Site ('Open Redirect') vulnerability in phoenixframework phoenix_live_view allows an attacker to send a victim's browser to an origin of the attacker's choosing via a `:to` value containing ASCII tab, LF or CR.\n\n`redirect/2` validates `:to` through the private `validate_local_url!/2` in `lib/phoenix_live_view.ex`, which is intended to guarantee the target is a path within the application. It rejects a leading `//` and any backslash, but not ASCII tab, LF or CR. Browsers strip those three characters before parsing a URL, so a value such as `/<TAB>/example.com` passes validation as a path and is then resolved as the scheme-relative URL `//example.com`. The live navigation functions share the guard but are not affected, because the client expands their target against the current origin. `push_patch/2` is also affected before 0.7.0, which is when that expansion was added.\n\nThis issue affects phoenix_live_view: from 0.5.0 before 1.0.19, from 1.1.0-rc.0 before 1.1.33, and from 1.2.0-rc.0 before 1.2.9."
                        }
                    ],
                    "value": "URL Redirection to Untrusted Site ('Open Redirect') vulnerability in phoenixframework phoenix_live_view allows an attacker to send a victim's browser to an origin of the attacker's choosing via a :to value containing ASCII tab, LF or CR.\n\nredirect/2 validates :to through the private validate_local_url!/2 in lib/phoenix_live_view.ex, which is intended to guarantee the target is a path within the application. It rejects a leading // and any backslash, but not ASCII tab, LF or CR. Browsers strip those three characters before parsing a URL, so a value such as /<TAB>/example.com passes validation as a path and is then resolved as the scheme-relative URL //example.com. The live navigation functions share the guard but are not affected, because the client expands their target against the current origin. push_patch/2 is also affected before 0.7.0, which is when that expansion was added.\n\nThis issue affects phoenix_live_view: from 0.5.0 before 1.0.19, from 1.1.0-rc.0 before 1.1.33, and from 1.2.0-rc.0 before 1.2.9."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-3",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "attackVector": "NETWORK",
                        "baseScore": 2.1,
                        "baseSeverity": "LOW",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "userInteraction": "ACTIVE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-601",
                            "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-08-10T11:05:14.571Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/phoenixframework/phoenix_live_view/security/advisories/GHSA-36m4-rm57-3prf"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-64941.html"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-64941"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/phoenixframework/phoenix_live_view/commit/0b8c733133466912f81adecaea72b6712370242e"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/phoenixframework/phoenix_live_view/commit/1c164f83df0bb922dfff9c60d125da5b0cfd6619"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/phoenixframework/phoenix_live_view/commit/2068b304d71907064b159b6bc60c5ad85a876ecf"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Open redirect in Phoenix.LiveView.validate_local_url!/2 via ASCII tab, LF and CR",
            "workarounds": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Reject any untrusted value containing ASCII tab, LF or CR before passing it as <code>:to</code> to <code>redirect/2</code>, or to <code>push_patch/2</code> before 0.7.0. Alternatively, map client-supplied navigation targets to a fixed set of known-good paths rather than forwarding the value.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "Reject any untrusted value containing ASCII tab, LF or CR before passing it as `:to` to `redirect/2`, or to `push_patch/2` before 0.7.0. Alternatively, map client-supplied navigation targets to a fixed set of known-good paths rather than forwarding the value."
                        }
                    ],
                    "value": "Reject any untrusted value containing ASCII tab, LF or CR before passing it as :to to redirect/2, or to push_patch/2 before 0.7.0. Alternatively, map client-supplied navigation targets to a fixed set of known-good paths rather than forwarding the value."
                }
            ]
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/phoenixframework/phoenix_live_view/security/advisories/GHSA-36m4-rm57-3prf",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-10T13:00:10.932600Z",
                                "id": "CVE-2026-64941",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-10T13:00:33.543Z"
                }
            }
        ]
    }
}