CVE-2024-2689

mediumpriority · track · 0EPSS 0.005 · 42 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.49% (42nd) EPSS

CVSS 4.4 · medium

Is it mine?

10 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · osv

EPSS · scored 2026-10-27

Denial of Service in Temporal Server prior to version 1.20.5, 1.21.6, and 1.22.7 allows an authenticated user who has permissions to interact with workflows and has crafted an invalid UTF-8 string for submission to potentially cause a crashloop. If left unchecked, the task containing the invalid UTF-8 will become stuck in the queue, causing an increase in queue lag. Eventually, all processes handling these queues will become stuck and the system will run out of resources. The workflow ID of the failing task will be visible in the logs, and can be used to remove that workflow as a mitigation. Version 1.23 is not impacted. In this context, a user is an operator of Temporal Server.

cvss

Technical severity, 0–10. One row per scoring source.

4.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 0.7 · impact 3.6

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · security@temporal.ioexploitability 0.7 · impact 3.6

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (10)

Products and version ranges known to be affected.

Temporal Technologies, Inc. Temporal Serverall versionsenisa_euvdEU
Temporal Technologies, Inc. Temporal Server0 → 1.20.5enisa_euvdEU
Temporal Technologies, Inc. Temporal Server1.21.0 → 1.21.6enisa_euvdEU
Temporal Technologies, Inc. Temporal Server1.22.0 → 1.22.7enisa_euvdEU
Go github.com/temporalio/temporal< 1.20.5osvUSpkg:golang/github.com/temporalio/temporal
Go github.com/temporalio/temporal1.21.0 → 1.21.6osvUSpkg:golang/github.com/temporalio/temporal
Go github.com/temporalio/temporal1.22.0-rc1 → 1.22.7osvUSpkg:golang/github.com/temporalio/temporal
Go go.temporal.io/server< 1.20.5osvUSpkg:golang/go.temporal.io/server
Go go.temporal.io/server1.21.0 → 1.21.6osvUSpkg:golang/go.temporal.io/server
Go go.temporal.io/server1.22.0-rc1 → 1.22.7osvUSpkg:golang/go.temporal.io/server

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-wmxc-v39r-p9wfTemporal Server Denial of Service2024-04-04ghsa · osvUS
Denial of Service in Temporal Server prior to version 1.20.5, 1.21.6, and 1.22.7 allows an authenticated user who has permissions to interact with workflows and has crafted an invalid UTF-8 string for submission to potentially cause a crashloop. If left unchecked, the task containing the invalid UTF-8 will become stuck in the queue, causing an increase in queue lag. Eventually, all processes handling these queues will become stuck and the system will run out of resources. The workflow ID of the failing task will be visible in the logs, and can be used to remove that workflow as a mitigation. Version 1.23 is not impacted. In this context, a user is an operator of Temporal Server.
GO-2024-2689Temporal Server Denial of Service in go.temporal.io/server2024-06-04vendor · osvUS
Temporal Server Denial of Service in go.temporal.io/server

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv NVD CVE.org MITRE

published 2024-04-03modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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