Vulnerability Description
github.com/temporalio/ringpop-go enforces configured LabelOptions limits when an application changes the local node's labels, but affected versions do not apply those limits to label maps received in SWIM membership changes. A network peer that can reach a live Ringpop TChannel listener can repeatedly submit changes for distinct member addresses containing label keys, values, or counts that exceed the receiver's configured limits. Accepted labels are retained in the member list and disseminated to peers, allowing memory and gossip-bandwidth consumption to exceed configured bounds and potentially making the hosting process unavailable. The fix validates peer-supplied label maps before they are retained or disseminated. Availability only; no confidentiality or integrity impact was identified.
Related Weaknesses (CWE)
References
- https://github.com/temporalio/ringpop-go/blob/b97329e994f792f70427a7533a3e7a9897
- https://github.com/temporalio/ringpop-go/blob/b97329e994f792f70427a7533a3e7a9897
- https://github.com/temporalio/ringpop-go/commit/c317effcdc8bc09ed1c11f00994782bd
- https://github.com/temporalio/ringpop-go/commit/d0de5fe1333074d5c41a88e9053592e3
- https://github.com/temporalio/ringpop-go/pull/22
- https://github.com/temporalio/ringpop-go/tree/v0.1.0
FAQ
What is CVE-2026-65654?
CVE-2026-65654 is a documented vulnerability. github.com/temporalio/ringpop-go enforces configured LabelOptions limits when an application changes the local node's labels, but affected versions do not apply those limits to label maps received in ...
How severe is CVE-2026-65654?
CVSS scoring is not yet available for CVE-2026-65654. Check NVD for updates.
Is there a patch for CVE-2026-65654?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.