EEF-CVE-2026-86522

vendorUSosv

Log injection via an unescaped password reset identity in AshAuthentication

view advisory published 2026-09-17Licence: per source

## 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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-86522US——
Improper Output Neutralization for Logs vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to forge application log entries by submitting a password…
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