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6.3 Medium

Improper Session Invalidation after Authentication Credential Change vulnerability in team-alembic ashauthentication allows an attacker…

CVE-2026-110826

Improper Session Invalidation after Authentication Credential Change vulnerability in team-alembic ashauthentication allows an attacker holding a victim's session token to stay signed in after the victim resets or changes their password. With applyonpasswordchange? true, AshAuthentication.AddOn.LogOutEverywhere.Transformer adds OnPasswordChange to update actions as a global change guarded by where: changing(hashedpassword). That condition is evaluated before the action's beforeaction hooks run, but AshAuthentication.Strategy.Password.HashPasswordChange sets the new hash in a beforeaction hook, so for every non-atomic password change the condition is false and the user's stored tokens are not revoked. The generated password reset action and the installer's changepassword action are both non-atomic. This issue affects ashauthentication: from 4.5.0 before 4.15.1 and from 5.0.0-rc.0 before 5.0.0-rc.16.

Assessment

CVSS
6.3 (v4.0)
Severity
Medium
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
3 November 2026
Last updated
3 November 2026
Assigner
EEF

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

At the source

References

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