23 Oct 2026 15:48:27 UTC
Log injection via an unescaped password reset identity in AshAuthentication
cve-program · CVE-2026-86522 · Published
CVE-2026-86522
Log injection via an unescaped password reset identity in AshAuthentication
CVSS 4.0 6.3 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-86522
PublishedImproper 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.
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