eef-cve-2026-86522
CVSS 6.3 osv_hex
Description
## Summary Improper Output Neutralization for Logs vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to forge application log entries by submitting a password reset identity containing newlines or control characters. `AshAuthentication.Strategy.Password.RequestPasswordReset.run/3` interpolates the `identity` argument, the email or username taken straight from the reset request, into its `Logger.warning/1` heredocs without escaping, truncating or type-restricting it. The resource logged beside it is passed through `inspect/1`, which would have neutralized the value. A newline in the identity therefore ends the log record, and everything after it is written as a line of its own, so an attacker chooses the severity tag and the content of entries that appear to have come from the application. This issue affects ash_authentication: from 4.2.0 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/security/advisories/GHSA-wg7g-r393-vr3g
- https://cna.erlef.org/cves/CVE-2026-86522.html
- https://github.com/team-alembic/ash_authentication/commit/3954f277929712755aef57a4a3a821688f121316
- https://github.com/team-alembic/ash_authentication/commit/fd19358bf0eee53ef13dcf17cc499bd4fb393981
- https://github.com/team-alembic/ash_authentication/commit/57c7cc3236bef0fa9da19cb315414f216488866d
- https://hex.pm/packages/ash_authentication
Linked Vulnerabilities
No linked vulnerabilities found.
{
"affected": [
{
"database_specific": {
"source": "https://cna.erlef.org/osv/EEF-CVE-2026-86522.json"
},
"package": {
"ecosystem": "Hex",
"name": "ash_authentication",
"purl": "pkg:hex/ash_authentication"
},
"ranges": [
{
"events": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.15.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "5.0.0-rc.0"
},
{
"fixed": "5.0.0-rc.14"
}
],
"type": "SEMVER"
}
],
"versions": [
"4.10.0",
"4.11.0",
"4.12.0",
"4.13.0",
"4.13.1",
"4.13.2",
"4.13.3",
"4.13.4",
"4.13.5",
"4.13.6",
"4.13.7",
"4.14.0",
"4.14.1",
"4.14.2",
"4.2.0",
"4.2.1",
"4.2.2",
"4.2.3",
"4.2.4",
"4.2.5",
"4.2.6",
"4.2.7",
"4.3.0",
"4.3.1",
"4.3.10",
"4.3.11",
"4.3.12",
"4.3.2",
"4.3.3",
"4.3.4",
"4.3.5",
"4.3.6",
"4.3.7",
"4.3.8",
"4.3.9",
"4.4.0",
"4.4.1",
"4.4.2",
"4.4.3",
"4.4.4",
"4.4.5",
"4.4.6",
"4.4.7",
"4.4.8",
"4.4.9",
"4.5.0",
"4.5.1",
"4.5.2",
"4.5.3",
"4.5.4",
"4.5.5",
"4.5.6",
"4.6.0",
"4.6.1",
"4.6.2",
"4.6.3",
"4.6.4",
"4.7.0",
"4.7.1",
"4.7.2",
"4.7.3",
"4.7.4",
"4.7.5",
"4.7.6",
"4.8.0",
"4.8.1",
"4.8.2",
"4.8.3",
"4.8.5",
"4.8.6",
"4.8.7",
"4.9.0",
"4.9.1",
"4.9.2",
"4.9.3",
"4.9.4",
"4.9.5",
"4.9.6",
"4.9.7",
"4.9.8",
"4.9.9",
"5.0.0-rc.0",
"5.0.0-rc.1",
"5.0.0-rc.10",
"5.0.0-rc.11",
"5.0.0-rc.12",
"5.0.0-rc.13",
"5.0.0-rc.2",
"5.0.0-rc.3",
"5.0.0-rc.4",
"5.0.0-rc.5",
"5.0.0-rc.6",
"5.0.0-rc.7",
"5.0.0-rc.8",
"5.0.0-rc.9"
]
},
{
"database_specific": {
"source": "https://cna.erlef.org/osv/EEF-CVE-2026-86522.json"
},
"ranges": [
{
"events": [
{
"introduced": "3954f277929712755aef57a4a3a821688f121316"
},
{
"fixed": "fd19358bf0eee53ef13dcf17cc499bd4fb393981"
},
{
"fixed": "57c7cc3236bef0fa9da19cb315414f216488866d"
}
],
"repo": "https://github.com/team-alembic/ash_authentication",
"type": "GIT"
}
],
"versions": [
"v4.14.2",
"v5.0.0-rc.13",
"v4.14.1",
"v5.0.0-rc.12",
"v5.0.0-rc.11",
"v5.0.0-rc.10",
"v4.14.0",
"v4.13.7",
"5.0.0-rc.9",
"5.0.0-rc.8",
"v5.0.0-rc.7",
"v5.0.0-rc.6",
"v5.0.0-rc.5",
"v5.0.0-rc.4",
"v5.0.0-rc.3",
"v5.0.0-rc.2",
"v5.0.0-rc.1",
"v5.0.0-rc.0",
"v4.13.6",
"v4.13.5",
"v4.13.4",
"v4.13.3",
"v4.13.2",
"v4.13.1",
"v4.13.0",
"v4.12.0",
"v4.11.0",
"v4.10.0",
"v4.9.9",
"v4.9.8",
"v4.9.7",
"v4.9.6",
"v4.9.5",
"v4.9.4",
"v4.9.3",
"v4.9.2",
"v4.9.1",
"v4.9.0",
"v4.8.7",
"v4.8.5",
"v4.8.4",
"v4.8.3",
"v4.8.2",
"v4.8.1",
"v4.8.0",
"v4.7.7",
"v4.7.6",
"v4.7.5",
"v4.7.4",
"v4.7.3",
"v4.7.2",
"v4.7.1",
"v4.7.0",
"v4.6.4",
"v4.6.3",
"v4.6.2",
"v4.6.1",
"v4.6.0",
"v4.5.6",
"v4.5.5",
"v4.5.4",
"v4.5.3",
"v4.5.2",
"v4.5.1",
"v4.4.9",
"v4.4.8",
"v4.4.7",
"v4.4.6",
"v4.4.5",
"v4.4.4",
"v4.4.3",
"v4.4.2",
"v4.4.1",
"v4.4.0",
"v4.3.12",
"v4.3.10",
"v4.3.9",
"v4.3.7",
"v4.3.6",
"v4.3.4",
"v4.3.3",
"v4.3.2",
"v4.3.1",
"v4.3.0",
"v4.2.7",
"v4.2.5",
"v4.2.3",
"v4.2.2",
"v4.2.1",
"v4.2.0"
]
}
],
"aliases": [
"CVE-2026-86522",
"GHSA-wg7g-r393-vr3g"
],
"credits": [
{
"name": "Peter Ullrich",
"type": "REPORTER"
},
{
"name": "Jonatan Männchen / EEF",
"type": "ANALYST"
},
{
"name": "James Harton",
"type": "REMEDIATION_DEVELOPER"
}
],
"database_specific": {
"capec_ids": [
"CAPEC-93"
],
"cpe_ids": [
"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"
],
"cwe_ids": [
"CWE-117"
]
},
"details": "## Summary\n\nImproper Output Neutralization for Logs vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to forge application log entries by submitting a password reset identity containing newlines or control characters.\n\n`AshAuthentication.Strategy.Password.RequestPasswordReset.run/3` interpolates the `identity` argument, the email or username taken straight from the reset request, into its `Logger.warning/1` heredocs without escaping, truncating or type-restricting it. The resource logged beside it is passed through `inspect/1`, which would have neutralized the value. A newline in the identity therefore ends the log record, and everything after it is written as a line of its own, so an attacker chooses the severity tag and the content of entries that appear to have come from the application.\n\nThis issue affects ash_authentication: from 4.2.0 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.",
"id": "EEF-CVE-2026-86522",
"modified": "2026-09-17T13:26:03.971737148Z",
"published": "2026-09-17T13:09:11.572Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-wg7g-r393-vr3g"
},
{
"type": "WEB",
"url": "https://cna.erlef.org/cves/CVE-2026-86522.html"
},
{
"type": "WEB",
"url": "https://github.com/team-alembic/ash_authentication/commit/3954f277929712755aef57a4a3a821688f121316"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication/commit/fd19358bf0eee53ef13dcf17cc499bd4fb393981"
},
{
"type": "FIX",
"url": "https://github.com/team-alembic/ash_authentication/commit/57c7cc3236bef0fa9da19cb315414f216488866d"
},
{
"type": "PACKAGE",
"url": "https://hex.pm/packages/ash_authentication"
}
],
"schema_version": "1.9.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Log injection via an unescaped password reset identity in AshAuthentication"
}