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vuln-cve/data/2026/84xxx/CVE-2026-84155.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-84155",
"assignerOrgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"state": "PUBLISHED",
"assignerShortName": "ERIC",
"dateReserved": "2026-09-01T08:00:17.054Z",
"datePublished": "2026-11-06T10:27:24.656Z",
"dateUpdated": "2026-11-10T17:44:40.339Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"shortName": "ERIC",
"dateUpdated": "2026-11-06T10:27:24.656Z"
},
"title": "Session Token Remains Valid After Logout in Multi-Worker Deployments",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-613",
"description": "CWE-613 Insufficient session expiration",
"type": "CWE"
}
]
}
],
"impacts": [
{
"capecId": "CAPEC-593",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-593 Session Hijacking"
}
]
}
],
"affected": [
{
"vendor": "Ericsson",
"product": "CodeChecker",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "6.29.3",
"changes": [
{
"at": "6.29.3",
"status": "unaffected"
}
],
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "CodeChecker's web server fails to fully invalidate a session token on logout when the server runs with more than one API worker process (the default). Each worker process maintains its own\nin-memory session cache; logout only clears the cache of the single worker that handles the request (plus the shared database record). Other workers continue to honor the destroyed token\nfrom their stale in-memory copies until the session's lifetime expires. An attacker who has captured a valid token can therefore keep impersonating the user after the user has logged out.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<p>CodeChecker's web server fails to fully invalidate a session token on logout when the server runs with more than one API worker process (the default). Each worker process maintains its own<br>in-memory session cache; logout only clears the cache of the single worker that handles the request (plus the shared database record). Other workers continue to honor the destroyed token<br>from their stale in-memory copies until the session's lifetime expires. An attacker who has captured a valid token can therefore keep impersonating the user after the user has logged out.</p>"
}
]
}
],
"references": [
{
"url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-r42x-9wgw-cqc2"
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "MEDIUM",
"baseScore": 5.3,
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
}
}
],
"source": {
"discovery": "INTERNAL"
},
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-r42x-9wgw-cqc2",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-10T17:44:06.507542Z",
"id": "CVE-2026-84155",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-10T17:44:40.339Z"
}
}
]
}
}