CVE-2022-39388
Istio may allow identity impersonation if user has localhost access
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Timeline
ID reserved
By GitHub_M
- 2 months later
· 2 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.6 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVDNVD · Modified | 3.1 | Low3.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.53% · top 55% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.6.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/istio/istioGHSA-6c6p-h79f-g6p4 (opens in a new tab)
References (4)
- https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4 (opens in a new tab)x_transferred
- https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32 (opens in a new tab)x_transferred
- https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9 (opens in a new tab)x_transferred
- https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-6c6p-h79f-g6p4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-39388)Record last updated .