# Temporal vulnerabilities

Source: https://junglewise.ai/threats/vendors/temporal  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/temporal.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in Temporal: 0 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-96770, was published on 23 September 2026. Nothing in the last four weeks, down from 5 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 5
- All time: 5 (0 critical, 0 exploited in the wild)

## About Temporal

Workflow and temporal dependency orchestration platform for distributed systems.

## Latest Temporal vulnerabilities

- [CVE-2026-96770: s2s-proxy TLS client certificate verification bypass](https://junglewise.ai/threats/cve-2026-96770-all-published-s2s-proxy-versions-through-0-2-2-are-affected-in) (info, published 23 Sep 2026)
- [CVE-2026-87858: Temporal Server privilege escalation in Workflow completion callbacks](https://junglewise.ai/threats/cve-2026-87858-temporal-server-decided-whether-a-workflow-completion-callback) (info, published 21 Sep 2026)
- [CVE-2026-65654: Temporal ringpop-go insufficient label validation in SWIM membership](https://junglewise.ai/threats/cve-2026-65654-github-com-temporalio-ringpop-go-enforces-configured-labeloptions) (info, published 21 Sep 2026)
- [CVE-2026-65653: Temporal tchannel-go denial of service in fragment parsing](https://junglewise.ai/threats/cve-2026-65653-github-com-temporalio-tchannel-go-did-not-reject-tchannel-call) (info, published 21 Sep 2026)
- [CVE-2026-65652: Temporal tchannel-go checksum-type validation bypass](https://junglewise.ai/threats/cve-2026-65652-github-com-temporalio-tchannel-go-did-not-validate-the-one-byte) (info, published 21 Sep 2026)

## Most severe Temporal vulnerabilities

- [CVE-2026-87858: Temporal Server privilege escalation in Workflow completion callbacks](https://junglewise.ai/threats/cve-2026-87858-temporal-server-decided-whether-a-workflow-completion-callback) (info, published 21 Sep 2026)
- [CVE-2026-65653: Temporal tchannel-go denial of service in fragment parsing](https://junglewise.ai/threats/cve-2026-65653-github-com-temporalio-tchannel-go-did-not-reject-tchannel-call) (info, published 21 Sep 2026)
- [CVE-2026-65652: Temporal tchannel-go checksum-type validation bypass](https://junglewise.ai/threats/cve-2026-65652-github-com-temporalio-tchannel-go-did-not-validate-the-one-byte) (info, published 21 Sep 2026)
- [CVE-2026-65654: Temporal ringpop-go insufficient label validation in SWIM membership](https://junglewise.ai/threats/cve-2026-65654-github-com-temporalio-ringpop-go-enforces-configured-labeloptions) (info, published 21 Sep 2026)
- [CVE-2026-96770: s2s-proxy TLS client certificate verification bypass](https://junglewise.ai/threats/cve-2026-96770-all-published-s2s-proxy-versions-through-0-2-2-are-affected-in) (info, published 23 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 5 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 5 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Temporal vulnerabilities", https://junglewise.ai/threats/vendors/temporal, 9 November 2026.