CVE-2026-84155 (GCVE-0-2026-84155)
Vulnerability from cvelistv5 – Published: 2026-11-06 10:27 – Updated: 2026-11-06 10:27
VLAI
EPSS
VEX
Title
Session Token Remains Valid After Logout in Multi-Worker Deployments
Summary
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
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
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.
Severity
CWE
- CWE-613 - Insufficient session expiration
Assigner
ERIC
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ericsson | CodeChecker |
Affected:
0 , < 6.29.3
(semver)
|
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"status": "unaffected"
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"versionType": "semver"
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"impacts": [
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"descriptions": [
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"metrics": [
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"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",
"version": "4.0",
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"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
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"problemTypes": [
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"descriptions": [
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"description": "CWE-613 Insufficient session expiration",
"lang": "en",
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"providerMetadata": {
"dateUpdated": "2026-11-06T10:27:24.656Z",
"orgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"shortName": "ERIC"
},
"references": [
{
"url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-r42x-9wgw-cqc2"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Session Token Remains Valid After Logout in Multi-Worker Deployments",
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"cveId": "CVE-2026-84155",
"datePublished": "2026-11-06T10:27:24.656Z",
"dateReserved": "2026-09-01T08:00:17.054Z",
"dateUpdated": "2026-11-06T10:27:24.656Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Nomenclature
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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.
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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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