{"id":"CVE-2026-110826","title":"AshAuthentication log_out_everywhere leaves sessions valid after a password reset or non-atomic password change","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…","severity":"medium","cvss":6.3,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-1466"],"vendor":"team-alembic","product":"ash_authentication","affected":["ash_authentication >= 4.5.0 < 4.15.1","ash_authentication >= 5.0.0-rc.0 < 5.0.0-rc.16","team-alembic/ash_authentication >= 0993f944fbd8d668f941d2ca818da4a1d5917641 < *"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T19:39:56.983242Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T19:40:08.522Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110826","references":[{"url":"https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-j6f8-qcj9-gh4r","label":"`log_out_everywhere` in AshAuthentication leaves sessions valid after a password reset or non-atomic password change"},{"url":"https://cna.erlef.org/cves/CVE-2026-110826.html","label":"EEF CNA record for CVE-2026-110826"},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-110826","label":"OSV record EEF-CVE-2026-110826"},{"url":"https://github.com/team-alembic/ash_authentication/commit/0993f944fbd8d668f941d2ca818da4a1d5917641","label":"Introducing commit 0993f94 in team-alembic/ash_authentication"},{"url":"https://github.com/team-alembic/ash_authentication/commit/954697f168d55112b5050acddcd936b8bc1fba2b","label":"Fix commit 954697f in team-alembic/ash_authentication"},{"url":"https://github.com/team-alembic/ash_authentication/commit/2baef4eddeb604569d3564273d03eeef438e002c","label":"Fix commit 2baef4e in team-alembic/ash_authentication"}],"tags":["cve.org"],"epss":0.00482,"epssPercentile":0.41816,"ingestedAt":"2026-11-05T20:33:06.400Z","slug":"CVE-2026-110826","body":"## Overview\n\nImproper 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.\n\n## Affected\n\n- `ash_authentication >= 4.5.0 < 4.15.1`\n- `ash_authentication >= 5.0.0-rc.0 < 5.0.0-rc.16`\n- `team-alembic/ash_authentication >= 0993f944fbd8d668f941d2ca818da4a1d5917641 < *`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}