CVE-2023-3485 json
Insecure Default Authorization in Temporal Server
published 2023-06-30 3 y ago modified 2026-09-10 1 mo ago also BIT-temporal-2023-3485 , EUVD-2023-1805 , GHSA-gm2g-2xr9-pxxj , GO-2023-1879
- cvss
- 3.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 5%
- public exploits
- 0
- none known
Summary
Insecure defaults in open-source Temporal Server before version 1.20 on all platforms allows an attacker to craft a task token with access to a namespace other than the one specified in the request. Creation of this task token must be done outside of the normal Temporal server flow. It requires the namespace UUID and information from the workflow history for the target namespace. Under these conditions, it is possible to interfere with pending tasks in other namespaces, such as marking a task failed or completed. If a task is targeted for completion by the attacker, the targeted namespace must also be using the same data converter configuration as the initial, valid, namespace for the task completion payload to be decoded by workers in the target namespace.
Patch / fix
- go go.temporal.io/server 1.20.0
- bitnami temporal 1.20.0
- Temporal Technologies Inc. Temporal Server 1.20
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L |
| GitHub | 3.1 | 3.0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L |
| NVD | 3.1 | 3.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L |
| OSV | 3.1 | 3.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | go.temporal.io/server | <1.20.0 |
1.20.0 |
| bitnami | temporal | <1.20.0 |
1.20.0 |
Affected products
- Temporal Technologies Inc. Temporal Server
Classification
References
-
github.com
/temporalio/temporal/releases/tag/v1.20.0
web, release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2023-3485
advisory, web
-
github.com
/temporalio/temporal
package
-
github.com
/advisories/GHSA-gm2g-2xr9-pxxj
advisory
Sources
- CVE List CVE-2023-3485
- GitHub Advisory GHSA-gm2g-2xr9-pxxj
- NVD CVE-2023-3485
- OSV BIT-temporal-2023-3485
- OSV GO-2023-1879
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.