CVE-2022-39388 json
Istio may allow identity impersonation if user has localhost access
published 2022-11-09 3 y ago modified 2026-06-17 4 mo ago also GHSA-6c6p-h79f-g6p4 , EUVD-2022-7256
- cvss
- 7.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.
Patch / fix
- go github.com/istio/istio 1.15.3
- github.com/istio/istio@346260e commit
- github.com/istio/istio@9a643e2 commit
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.6 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 3.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 7.6 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/istio/istio | >=1.15.0-beta.0, <1.15.3 |
1.15.3 |
Affected products
- istio istio
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32
web, patch, third-party-advisory
-
github.com
/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9
web, patch, third-party-advisory
-
istio.io
/latest/news/releases/1.15.x/announcing-1.15.3/
release-notes, vendor-advisory
-
github.com
/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-39388
advisory
-
github.com
/istio/istio
package
-
istio.io
/latest/news/releases/1.15.x/announcing-1.15.3
web
Sources
- CVE List CVE-2022-39388
- GitHub Advisory GHSA-6c6p-h79f-g6p4
- NVD CVE-2022-39388
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