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.
Metrics
Affected Vendors & Products
References
History
Mon, 21 Sep 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Temporal
Temporal ringpop-go |
|
| Vendors & Products |
Temporal
Temporal ringpop-go |
Mon, 21 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 21 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | temporalio/ringpop-go fails to enforce configured label limits on inbound membership gossip | |
| Weaknesses | CWE-770 | |
| References |
|
|
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Temporal
Published: 2026-09-21T11:38:23.307Z
Updated: 2026-09-21T15:26:44.632Z
Reserved: 2026-07-22T18:08:48.925Z
Link: CVE-2026-65654
Updated: 2026-09-21T15:26:39.064Z
Status : Awaiting Analysis
Published: 2026-09-21T12:17:16.133
Modified: 2026-09-22T19:40:05.870
Link: CVE-2026-65654
No data.