eef-cve-2026-81632
CVSS 7.2 osv_hex
Description
## Summary Use of HTTP Request With Sensitive Query String vulnerability in team-alembic AshAuthenticationPhoenix allows someone able to read access logs, proxy logs or browser history to recover a single-use sign-in token and authenticate as its owner. After a successful password sign-in, `AshAuthentication.Phoenix.Components.Password.SignInForm` builds the `sign_in_with_token` path with the freshly issued `user.__metadata__.token` as a query parameter and redirects the browser to it with a GET. The token therefore travels in the request line, where web servers, reverse proxies, request telemetry and the browser's own history record it, all of which outlive the request and are ordinarily less protected than session storage. The redirect destination is restricted to a local path, so this is not an open redirect; the exposure is the retention of a live credential. This issue affects ash_authentication_phoenix: from 1.7.0 before 2.17.4 and from 3.0.0-rc.0 before 3.0.0-rc.11; ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.
Timeline
- Published
- unknown
- Last Modified
- unknown
CVSS Details
CVSS details not available.
Affected Products
No product information available.
Weaknesses (CWE)
References
- https://github.com/team-alembic/ash_authentication_phoenix/security/advisories/GHSA-8jh5-339h-mqx9
- https://cna.erlef.org/cves/CVE-2026-81632.html
- https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-j726-59hm-r46r
- https://github.com/team-alembic/ash_authentication_phoenix/commit/903f3a386e1aba2f7b070187ef6f31215a92bdfd
- https://github.com/team-alembic/ash_authentication_phoenix/commit/920257d0460b9c7cbb42a83d0888c10f4eeeb88a
- https://github.com/team-alembic/ash_authentication_phoenix/commit/ff5ad8737748afed9cdfde3ec3a05b8a4702a742
- https://github.com/team-alembic/ash_authentication/commit/eca8cadea0f1595ed2c10a0c177b1da9aa9e5269
- https://github.com/team-alembic/ash_authentication/commit/bbf345c1bb7aa28bce5dd856ac0ed2427f103859
- https://github.com/team-alembic/ash_authentication/commit/8d8ddd25c69b669a92a701af74bff42e1aada998
- https://hex.pm/packages/ash_authentication_phoenix
- https://hex.pm/packages/ash_authentication
Linked Vulnerabilities
No linked vulnerabilities found.
{
"affected": [
{
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"source": "https://cna.erlef.org/osv/EEF-CVE-2026-81632.json"
},
"package": {
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{
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{
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}
],
"aliases": [
"CVE-2026-81632",
"GHSA-8jh5-339h-mqx9"
],
"credits": [
{
"name": "Peter Ullrich",
"type": "REPORTER"
},
{
"name": "Jonatan Männchen / EEF",
"type": "ANALYST"
},
{
"name": "James Harton",
"type": "REMEDIATION_DEVELOPER"
}
],
"database_specific": {
"capec_ids": [
"CAPEC-150"
],
"cpe_ids": [
"cpe:2.3:a:team-alembic:ash_authentication_phoenix:*:*:*:*:*:*:*:*",
"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"
],
"cwe_ids": [
"CWE-598"
]
},
"details": "## Summary\n\nUse of HTTP Request With Sensitive Query String vulnerability in team-alembic AshAuthenticationPhoenix allows someone able to read access logs, proxy logs or browser history to recover a single-use sign-in token and authenticate as its owner.\n\nAfter a successful password sign-in, `AshAuthentication.Phoenix.Components.Password.SignInForm` builds the `sign_in_with_token` path with the freshly issued `user.__metadata__.token` as a query parameter and redirects the browser to it with a GET. The token therefore travels in the request line, where web servers, reverse proxies, request telemetry and the browser's own history record it, all of which outlive the request and are ordinarily less protected than session storage. The redirect destination is restricted to a local path, so this is not an open redirect; the exposure is the retention of a live credential.\n\nThis issue affects ash_authentication_phoenix: from 1.7.0 before 2.17.4 and from 3.0.0-rc.0 before 3.0.0-rc.11; ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.",
"id": "EEF-CVE-2026-81632",
"modified": "2026-09-17T13:26:04.140685335Z",
"published": "2026-09-17T13:09:31.601Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/team-alembic/ash_authentication_phoenix/security/advisories/GHSA-8jh5-339h-mqx9"
},
{
"type": "WEB",
"url": "https://cna.erlef.org/cves/CVE-2026-81632.html"
},
{
"type": "ADVISORY",
"url": "https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-j726-59hm-r46r"
},
{
"type": "WEB",
"url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/903f3a386e1aba2f7b070187ef6f31215a92bdfd"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/920257d0460b9c7cbb42a83d0888c10f4eeeb88a"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication_phoenix/commit/ff5ad8737748afed9cdfde3ec3a05b8a4702a742"
},
{
"type": "WEB",
"url": "https://github.com/team-alembic/ash_authentication/commit/eca8cadea0f1595ed2c10a0c177b1da9aa9e5269"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication/commit/bbf345c1bb7aa28bce5dd856ac0ed2427f103859"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication/commit/8d8ddd25c69b669a92a701af74bff42e1aada998"
},
{
"type": "PACKAGE",
"url": "https://hex.pm/packages/ash_authentication_phoenix"
},
{
"type": "PACKAGE",
"url": "https://hex.pm/packages/ash_authentication"
}
],
"schema_version": "1.9.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Single-use sign-in token placed in a redirect query string in AshAuthenticationPhoenix"
}