Metrics
Affected Vendors & Products
No advisories yet.
Solution
The following EOS releases contain the fix for this vulnerability: - 4.33.9M and later releases in the 4.33.x train - 4.34.7M and later releases in the 4.34.x train - 4.35.6M and later releases in the 4.35.x train - 4.36.1F and later releases in the 4.36.x train No hotfix is available for this vulnerability.
Workaround
Option 1: Disable gNSI Pathz entirely: switch#configure switch(config)#management api gnsi switch(config-mgmt-api-gnsi)#no service pathz Option 2: Push a new gNSI Pathz policy that does not contain any group rules, using only user-principal rules. To push a new policy via grpcurl: grpcurl -protoset ./pathz.proto.pb -H 'username:$USER' -v -d @ -plaintext $TARGET:$PORT gnsi.pathz.v1.Pathz/Rotate << EOF { "upload_request": { "version": "<version>", "created_on": <timestamp>, "policy": <policy> } } { "finalize_rotation": {} } EOF Ensure all rules in the policy use "user" as the principal rather than "group" to avoid triggering this vulnerability.
Wed, 16 Sep 2026 15:30:00 +0000
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| Metrics |
ssvc
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Wed, 16 Sep 2026 08:30:00 +0000
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| Description | On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz policy is present on the system, then gNMI may fail to correctly enforce the rules in this policy if both a group rule and a user rule for the same path is present in the policy. Under certain conditions, this can lead to an authenticated user gaining unauthorized permission to read or write gNMI paths that the Pathz policy is intended to restrict. | |
| Title | Security Advisory 0164 | |
| Weaknesses | CWE-842 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: Arista
Published:
Updated: 2026-09-16T14:52:02.194Z
Reserved: 2026-08-12T16:39:35.977Z
Link: CVE-2026-73439
Updated: 2026-09-16T14:51:54.812Z
Status : Received
Published: 2026-09-16T09:17:04.687
Modified: 2026-09-16T15:17:42.573
Link: CVE-2026-73439
No data.
OpenCVE Enrichment
Updated: 2026-09-16T15:00:07Z