{"api_version":"1","generated_at":"2026-11-03T21:45:23+00:00","cve":"CVE-2026-110826","urls":{"html":"https://cve.report/CVE-2026-110826","api":"https://cve.report/api/cve/CVE-2026-110826.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-110826","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-110826"},"summary":{"title":"AshAuthentication log_out_everywhere leaves sessions valid after a password reset or non-atomic password change","description":"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.\n\nWith 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.\n\nThis 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.","state":"PUBLISHED","assigner":"EEF","published_at":"2026-11-03 20:18:06","updated_at":"2026-11-03 20:18:06"},"problem_types":["CWE-1466 CWE-1466 Improper Session Invalidation after Authentication Credential 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110826","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"team-alembic","product":"ash_authentication","version":"affected 4.5.0 4.15.1 semver","platforms":[]},{"source":"CNA","vendor":"team-alembic","product":"ash_authentication","version":"affected 5.0.0-rc.0 5.0.0-rc.16 semver","platforms":[]},{"source":"CNA","vendor":"team-alembic","product":"ash_authentication","version":"affected 0993f944fbd8d668f941d2ca818da4a1d5917641 * git","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"azmaveth","lang":"en"},{"source":"CNA","value":"azmaveth","lang":"en"},{"source":"CNA","value":"azmaveth","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-110826","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-03T19:39:56.983242Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-03T19:40:08.522Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer'","'Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange'"],"packageName":"ash_authentication","packageURL":"pkg:hex/ash_authentication","product":"ash_authentication","programFiles":["lib/ash_authentication/add_ons/log_out_everywhere/transformer.ex","lib/ash_authentication/add_ons/log_out_everywhere/on_password_change.ex"],"programRoutines":[{"name":"'Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer':transform/2"},{"name":"'Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange':change/3"}],"repo":"https://github.com/team-alembic/ash_authentication","vendor":"team-alembic","versions":[{"lessThan":"4.15.1","status":"affected","version":"4.5.0","versionType":"semver"},{"lessThan":"5.0.0-rc.16","status":"affected","version":"5.0.0-rc.0","versionType":"semver"}]},{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer'","'Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange'"],"packageName":"team-alembic/ash_authentication","packageURL":"pkg:github/team-alembic/ash_authentication","product":"ash_authentication","programFiles":["lib/ash_authentication/add_ons/log_out_everywhere/transformer.ex","lib/ash_authentication/add_ons/log_out_everywhere/on_password_change.ex"],"programRoutines":[{"name":"'Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer':transform/2"},{"name":"'Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange':change/3"}],"repo":"https://github.com/team-alembic/ash_authentication","vendor":"team-alembic","versions":[{"changes":[{"at":"954697f168d55112b5050acddcd936b8bc1fba2b","status":"unaffected"},{"at":"2baef4eddeb604569d3564273d03eeef438e002c","status":"unaffected"}],"lessThan":"*","status":"affected","version":"0993f944fbd8d668f941d2ca818da4a1d5917641","versionType":"git"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The <code>log_out_everywhere</code> add-on sets <code>apply_on_password_change? true</code>, as <code>mix ash_authentication.install</code> writes, and the password is changed through a non-atomic update action, which includes the generated password reset action and the installer's <code>change_password</code> action. The attacker must already hold one of the victim's session tokens.</p>"},{"base64":false,"type":"text/markdown","value":"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."}],"value":"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."}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*","versionEndExcluding":"4.15.1","versionStartIncluding":"4.5.0","vulnerable":true},{"criteria":"cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*","versionEndExcluding":"5.0.0-rc.16","versionStartIncluding":"5.0.0-rc.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"AND"}],"credits":[{"lang":"en","type":"finder","value":"azmaveth"},{"lang":"en","type":"reporter","value":"azmaveth"},{"lang":"en","type":"remediation developer","value":"azmaveth"}],"dateAssigned":"2026-11-03T03:15:53.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>\n<p>With <code>apply_on_password_change? true</code>, <code>AshAuthentication.AddOn.LogOutEverywhere.Transformer</code> adds <code>OnPasswordChange</code> to update actions as a global change guarded by <code>where: changing(hashed_password)</code>. That condition is evaluated before the action's <code>before_action</code> hooks run, but <code>AshAuthentication.Strategy.Password.HashPasswordChange</code> sets the new hash in a <code>before_action</code> 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 <code>change_password</code> action are both non-atomic.</p>\n<p>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.</p>"},{"base64":false,"type":"text/markdown","value":"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.\n\nWith `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.\n\nThis 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."}],"value":"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.\n\nWith 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.\n\nThis 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."}],"impacts":[{"capecId":"CAPEC-60","descriptions":[{"lang":"en","value":"CAPEC-60 Reusing Session IDs (aka Session Replay)"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1466","description":"CWE-1466 Improper Session Invalidation after Authentication Credential 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Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"110826","Ordinal":"1","Title":"AshAuthentication log_out_everywhere leaves sessions valid after","CVE":"CVE-2026-110826","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"110826","Ordinal":"1","NoteData":"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.\n\nWith 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.\n\nThis 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.","Type":"Description","Title":"AshAuthentication log_out_everywhere leaves sessions valid after"}]}}}