CVE-2026-65654

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Source

https://cve.org/CVERecord?id=CVE-2026-65654

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65654.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-65654

Published

2026-09-21T11:38:23Z

Modified

2026-09-24T03:30:29Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

temporalio/ringpop-go fails to enforce configured label limits on inbound membership gossip

Details

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.

Database specific

{
    "cna_assigner":  "Temporal",
    "cwe_ids":  [
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65654.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "0.0.0-20160824133849-d0de5fe13330"
                },
                {
                    "fixed":  "0.0.0-20260724173031-c317effcdc8b"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/temporalio/ringpop-go

Affected ranges

Type

GIT

Repo

https://github.com/temporalio/ringpop-go

Events

Introduced

Fixed

c317effcdc8bc09ed1c11f00994782bda9685d4b

Fixed

d0de5fe1333074d5c41a88e9053592e39f495bb2

Database specific

Show details

{
    "source":  "REFERENCES"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65654.json"