CVE-2026-110826 (GCVE-0-2026-110826)
Vulnerability from cvelistv5 – Published: 2026-11-03 19:19 – Updated: 2026-11-03 19:40
VLAI
EPSS
VEX
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.
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 19:39 UTC
CWE
- CWE-1466 - Improper Session Invalidation after Authentication Credential Change
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| team-alembic | ash_authentication |
Affected:
4.5.0 , < 4.15.1
(semver)
Affected: 5.0.0-rc.0 , < 5.0.0-rc.16 (semver) cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:* |
||
| team-alembic | ash_authentication |
Affected:
0993f944fbd8d668f941d2ca818da4a1d5917641 , < *
(git)
cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:* |
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"Automatable": "no"
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{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-03T19:39:56.983242Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-03T19:40:03.418Z",
"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": [
"\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer\u0027",
"\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange\u0027"
],
"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": "\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer\u0027:transform/2"
},
{
"name": "\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange\u0027: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": [
"\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer\u0027",
"\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange\u0027"
],
"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": "\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.Transformer\u0027:transform/2"
},
{
"name": "\u0027Elixir.AshAuthentication.AddOn.LogOutEverywhere.OnPasswordChange\u0027: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": "\u003cp\u003eThe \u003ccode\u003elog_out_everywhere\u003c/code\u003e add-on sets \u003ccode\u003eapply_on_password_change? true\u003c/code\u003e, as \u003ccode\u003emix ash_authentication.install\u003c/code\u003e writes, and the password is changed through a non-atomic update action, which includes the generated password reset action and the installer\u0027s \u003ccode\u003echange_password\u003c/code\u003e action. The attacker must already hold one of the victim\u0027s session tokens.\u003c/p\u003e"
},
{
"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\u0027s `change_password` action. The attacker must already hold one of the victim\u0027s 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\u0027s change_password action. The attacker must already hold one of the victim\u0027s 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": "\u003cp\u003eImproper Session Invalidation after Authentication Credential Change vulnerability in team-alembic ash_authentication allows an attacker holding a victim\u0027s session token to stay signed in after the victim resets or changes their password.\u003c/p\u003e\n\u003cp\u003eWith \u003ccode\u003eapply_on_password_change? true\u003c/code\u003e, \u003ccode\u003eAshAuthentication.AddOn.LogOutEverywhere.Transformer\u003c/code\u003e adds \u003ccode\u003eOnPasswordChange\u003c/code\u003e to update actions as a global change guarded by \u003ccode\u003ewhere: changing(hashed_password)\u003c/code\u003e. That condition is evaluated before the action\u0027s \u003ccode\u003ebefore_action\u003c/code\u003e hooks run, but \u003ccode\u003eAshAuthentication.Strategy.Password.HashPasswordChange\u003c/code\u003e sets the new hash in a \u003ccode\u003ebefore_action\u003c/code\u003e hook, so for every non-atomic password change the condition is false and the user\u0027s stored tokens are not revoked. The generated password reset action and the installer\u0027s \u003ccode\u003echange_password\u003c/code\u003e action are both non-atomic.\u003c/p\u003e\n\u003cp\u003eThis 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.\u003c/p\u003e"
},
{
"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\u0027s 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\u0027s `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\u0027s stored tokens are not revoked. The generated password reset action and the installer\u0027s `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\u0027s 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\u0027s 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\u0027s stored tokens are not revoked. The generated password reset action and the installer\u0027s 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 Change",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-03T19:19:26.188Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"name": "`log_out_everywhere` in AshAuthentication leaves sessions valid after a password reset or non-atomic password change",
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-j6f8-qcj9-gh4r"
},
{
"name": "EEF CNA record for CVE-2026-110826",
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-110826.html"
},
{
"name": "OSV record EEF-CVE-2026-110826",
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-110826"
},
{
"name": "Introducing commit 0993f94 in team-alembic/ash_authentication",
"tags": [
"related"
],
"url": "https://github.com/team-alembic/ash_authentication/commit/0993f944fbd8d668f941d2ca818da4a1d5917641"
},
{
"name": "Fix commit 954697f in team-alembic/ash_authentication",
"tags": [
"patch"
],
"url": "https://github.com/team-alembic/ash_authentication/commit/954697f168d55112b5050acddcd936b8bc1fba2b"
},
{
"name": "Fix commit 2baef4e in team-alembic/ash_authentication",
"tags": [
"patch"
],
"url": "https://github.com/team-alembic/ash_authentication/commit/2baef4eddeb604569d3564273d03eeef438e002c"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "AshAuthentication log_out_everywhere leaves sessions valid after a password reset or non-atomic password change"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-110826",
"datePublished": "2026-11-03T19:19:26.188Z",
"dateReserved": "2026-11-03T03:00:02.226Z",
"dateUpdated": "2026-11-03T19:40:08.522Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.