# Temporal Cloud in September 2026: incidents, uptime and changes

> Temporal Cloud in September 2026: 7 incidents on its status page (1 major or critical), 98.54% free of major or critical incidents (vendor-reported), 9 CVEs. From Rewindex’s archive of Temporal Cloud’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/temporal-cloud/2026/09
Last updated: 2026-10-01T00:00:00Z

- Incidents posted: 7 (major/critical: 1) · Maintenance: 0
- By vendor impact label: major 1, minor 5, none 1
- Uptime (vendor-reported): 98.54% free of major/critical incidents, 95.49% free of any incident; outage time 10 h 30 min, incident time 32 h 26 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 9
- Previous month: [August 2026](https://rewindex.com/company/temporal-cloud/2026/08.md) · Next: [October 2026](https://rewindex.com/company/temporal-cloud/2026/10.md) · [All months](https://rewindex.com/company/temporal-cloud/reports.md) · [Temporal Cloud](https://rewindex.com/company/temporal-cloud.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Customers in us-central1 and asia-southeast2 may experience a delay in workflow progress](https://rewindex.com/company/temporal-cloud/incidents/sbklf2d1c35d.md) | major | 2026-09-10 20:51 UTC | 2026-09-11 07:21 UTC | 11 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Elevated error rates in GCP us-central1](https://rewindex.com/company/temporal-cloud/incidents/yj8d6hqcn0h4.md) | minor | 2026-09-01 15:47 UTC | 2026-09-01 21:43 UTC | 5.9 h | resolved |
| [Low Rate of Namespace Create/Update Failures Across All Regions](https://rewindex.com/company/temporal-cloud/incidents/9xl1y03l1kjj.md) | minor | 2026-09-02 15:26 UTC | 2026-09-02 15:49 UTC | 23 min | resolved |
| [Elevated Errors in us-west-2 Region](https://rewindex.com/company/temporal-cloud/incidents/vn2t29t2xr5t.md) | minor | 2026-09-03 21:12 UTC | 2026-09-04 05:28 UTC | 8.3 h | resolved |
| [Customers in us-central1 and asia-southeast2 may experience a delay in workflow progress](https://rewindex.com/company/temporal-cloud/incidents/sbklf2d1c35d.md) | major | 2026-09-10 20:51 UTC | 2026-09-11 07:21 UTC | 11 h | resolved |
| [Some customers in APSE region may experience incomplete responses from Temporal Cloud metrics (OpenMetrics)](https://rewindex.com/company/temporal-cloud/incidents/2q30sff2qnfh.md) | none | 2026-09-11 10:10 UTC | 2026-09-11 14:29 UTC | 4.3 h | resolved |
| [Some customers may have incorrectly received a "credit expiry notification"](https://rewindex.com/company/temporal-cloud/incidents/z09mvrbs7mh3.md) | minor | 2026-09-18 15:54 UTC | 2026-09-18 22:23 UTC | 6.5 h | resolved |
| [Increased latency in region us-west-2](https://rewindex.com/company/temporal-cloud/incidents/kp686ml653tj.md) | minor | 2026-09-27 01:01 UTC | 2026-09-27 01:53 UTC | 53 min | resolved |

## CVEs published

- [CVE-2026-16652](https://rewindex.com/cve/CVE-2026-16652.md) Temporal Server Schedule exclusion search can cause excessive CPU consumption (CVSS 7.1), published 2026-09-21
- [CVE-2026-16651](https://rewindex.com/cve/CVE-2026-16651.md) temporalio/sqlparser malformed MySQL version comments can cause a panic (CVSS 8.7), published 2026-09-21
- [CVE-2026-65651](https://rewindex.com/cve/CVE-2026-65651.md) temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal (CVSS 8.7), published 2026-09-21
- [CVE-2026-65652](https://rewindex.com/cve/CVE-2026-65652.md) temporalio/tchannel-go malformed checksum type causes process termination (CVSS 8.7), published 2026-09-21
- [CVE-2026-65653](https://rewindex.com/cve/CVE-2026-65653.md) temporalio/tchannel-go zero-chunk call fragment causes process termination (CVSS 8.7), published 2026-09-21
- [CVE-2026-65654](https://rewindex.com/cve/CVE-2026-65654.md) temporalio/ringpop-go fails to enforce configured label limits on inbound membership gossip (CVSS 8.7), published 2026-09-21
- [CVE-2026-87858](https://rewindex.com/cve/CVE-2026-87858.md) Temporal Server completion callback source header can direct attacker-chosen requests to the internal frontend with administrator authorization (CVSS 7.2), published 2026-09-21
- [CVE-2026-89139](https://rewindex.com/cve/CVE-2026-89139.md) Temporal Server worker deployment compute provider executes a caller-supplied command on the Worker Service host (CVSS 8.7), published 2026-09-21
- [CVE-2026-96770](https://rewindex.com/cve/CVE-2026-96770.md) s2s-proxy accepts untrusted client certificates (CVSS 9.3), published 2026-09-23

## Cite this

Temporal Cloud posted 7 status incidents in September 2026 (1 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/temporal-cloud/2026/09
- Citation: Temporal Cloud, “Temporal Cloud in September 2026” (2026-09-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/temporal-cloud/2026/09 (CC BY 4.0).
- Markdown link: `[Temporal Cloud: Temporal Cloud in September 2026 (2026-09-01)](https://rewindex.com/company/temporal-cloud/2026/09)`


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Canonical: https://rewindex.com/company/temporal-cloud/2026/09 · Markdown: https://rewindex.com/company/temporal-cloud/2026/09.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T11:03:27.663Z