Session Token Remains Valid After Logout in Multi-Worker Deployments

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-84155
StatePUBLISHED
AssignerERIC
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-06 11:17:17 UTC
Updated2026-11-10 18:17:48 UTC
DescriptionCodeChecker'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.

Risk And Classification

Primary CVSS: v4.0 5.3 MEDIUM from 85b1779b-6ecd-4f52-bcc5-73eac4659dcf

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-613 | CWE-613 CWE-613 Insufficient session expiration

VersionSourceTypeScoreSeverityVector
4.085b1779b-6ecd-4f52-bcc5-73eac4659dcfSecondary5.3MEDIUMCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS5.3MEDIUMCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
Passive
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ericsson CodeChecker affected 6.29.3 semver Not specified

References

ReferenceSourceLinkTags
github.com/Ericsson/codechecker/security/advisories/GHSA-r42x-9wgw-cqc2 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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