CVE-2026-39350
Essential information
- Published
- 15/04/2026 23:16
- Modified
- 15/04/2026 23:16
- Author
- —
- Creator
- —
- CVSS
- 5.4 MEDIUM (v3.1)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N—
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Privileges required
- LOW
- User interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality impact
- LOW
- Integrity impact
- LOW
- Availability impact
- NONE
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Attack requirements
- —
- Privileges required
- —
- User interaction
- —
- Confidentiality (V)
- —
- Confidentiality (S)
- —
- Integrity (V)
- —
- Integrity (S)
- —
- Availability (V)
- —
- Availability (S)
- —
- Exploit maturity
- —
Description
Istio is an open platform to connect, manage, and secure microservices. In versions 1.25.0 through 1.27.8, 1.28.0 through 1.28.5, 1.29.0, and 1.29.1, the serviceAccounts and notServiceAccounts fields in AuthorizationPolicy incorrectly interpret dots (.) as a regular expression matcher. Because . is a valid character in a service account name, an AuthorizationPolicy ALLOW rule targeting a service account such as cert-manager.io also matches cert-manager-io, cert-managerXio, etc. A DENY rule targeting the same name fails to block those variants. Fixes are available in versions 1.29.2, 1.28.6, and 1.27.9.
NVD status
- Status
- Received — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| istio / istio | cpe:2.3:a:istio:istio:1.25.0-1.27.8:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.28.0-1.28.5:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.29.0:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.29.1:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.29.2:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.28.6:*:*:*:*:*:*:* |
| istio / istio | cpe:2.3:a:istio:istio:1.27.9:*:*:*:*:*:*:* |