EEF-CVE-2026-110826

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Source
https://cna.erlef.org/osv/EEF-CVE-2026-110826.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-110826.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-110826
Aliases
  • CVE-2026-110826
  • GHSA-j6f8-qcj9-gh4r
Published
2026-11-03T19:19:26Z
Modified
2026-11-03T19:41:06Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
AshAuthentication log_out_everywhere leaves sessions valid after a password reset or non-atomic password change
Details

Summary

Improper Session Invalidation after Authentication Credential Change vulnerability in team-alembic ash_authentication allows an attacker holding a victim's session token to stay signed in after the victim resets or changes their password.

With apply_on_password_change? true, AshAuthentication.AddOn.LogOutEverywhere.Transformer adds OnPasswordChange to update actions as a global change guarded by where: changing(hashed_password). That condition is evaluated before the action's before_action hooks run, but AshAuthentication.Strategy.Password.HashPasswordChange sets the new hash in a before_action 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 change_password action are both non-atomic.

This issue affects ash_authentication: from 4.5.0 before 4.15.1 and from 5.0.0-rc.0 before 5.0.0-rc.16.

Configurations

The log_out_everywhere add-on sets apply_on_password_change? true, as mix ash_authentication.install writes, and the password is changed through a non-atomic update action, which includes the generated password reset action and the installer's change_password action. The attacker must already hold one of the victim's session tokens.

Database specific 
{
    "capec_ids": [
        "CAPEC-60"
    ],
    "cpe_ids": [
        "cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"
    ],
    "cwe_ids": [
        "CWE-1466"
    ]
}
References
Credits
    • azmaveth - FINDER
    • azmaveth - REPORTER
    • azmaveth - REMEDIATION_DEVELOPER

Affected packages

Hex / ash_authentication

Package

Name
ash_authentication
Purl
pkg:hex/ash_authentication

Affected ranges

Type
SEMVER
Events
Introduced
4.5.0
Fixed
4.15.1
Type
SEMVER
Events
Introduced
5.0.0-rc.0
Fixed
5.0.0-rc.16

Affected versions

4.*
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
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
4.15.0
5.*
5.0.0-rc.0
5.0.0-rc.1
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
5.0.0-rc.10
5.0.0-rc.11
5.0.0-rc.12
5.0.0-rc.13
5.0.0-rc.14
5.0.0-rc.15

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-110826.json"

Git / github.com/team-alembic/ash_authentication

Affected ranges

Type
GIT
Repo
https://github.com/team-alembic/ash_authentication
Events
Introduced
0993f944fbd8d668f941d2ca818da4a1d5917641
Fixed
954697f168d55112b5050acddcd936b8bc1fba2b
Fixed
2baef4eddeb604569d3564273d03eeef438e002c

Affected versions

5.*
5.0.0-rc.8
5.0.0-rc.9
v4.*
v4.10.0
v4.11.0
v4.12.0
v4.13.0
v4.13.1
v4.13.2
v4.13.3
v4.13.4
v4.13.5
v4.13.6
v4.13.7
v4.14.0
v4.14.1
v4.14.2
v4.15.0
v4.5.1
v4.5.2
v4.5.3
v4.5.4
v4.5.5
v4.5.6
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.6.4
v4.7.0
v4.7.1
v4.7.2
v4.7.3
v4.7.4
v4.7.5
v4.7.6
v4.7.7
v4.8.0
v4.8.1
v4.8.2
v4.8.3
v4.8.4
v4.8.5
v4.8.7
v4.9.0
v4.9.1
v4.9.2
v4.9.3
v4.9.4
v4.9.5
v4.9.6
v4.9.7
v4.9.8
v4.9.9
v5.*
v5.0.0-rc.0
v5.0.0-rc.1
v5.0.0-rc.10
v5.0.0-rc.11
v5.0.0-rc.12
v5.0.0-rc.13
v5.0.0-rc.14
v5.0.0-rc.15
v5.0.0-rc.2
v5.0.0-rc.3
v5.0.0-rc.4
v5.0.0-rc.5
v5.0.0-rc.6
v5.0.0-rc.7

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-110826.json"