Public vulnerability disclosure

CVE-2026-84155

Session Token Remains Valid After Logout in Multi-Worker Deployments

publishedCWE-613

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.

Technical severity5.3 mediumCVSS 4.0 · CNA: ERIC
Published2026-11-06Source updated 2026-11-06
Collected2026-11-061 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
CodeChecker
Ericsson
≥ 0; < 6.29.3 (affected, semver); unaffected at 6.29.3
Other versions: unaffected
CNA: ERIC

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 5.3
medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NCNA: ERIC

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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