Detections
Analytics

Echo: go.etcd.io/etcd/server/v3: security update to 3.5.33

high Tenable Self-Hosted Container Security Plugin ID 459560

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33,
 3.6.14, and 3.7.1, a user granted READ permission on a single exact key can use the Watch gRPC API with
 clientv3.WithFromKey() to receive watch events for every key lexicographically greater than or equal to
 the permitted key. In server/etcdserver/api/v3rpc/watch.go, the open-ended RangeEnd sentinel is rewritten
 before the RBAC permission check in server/auth/range_perm_cache.go function isRangeOpPermitted, causing
 the request to be treated as an exact-key watch. Range/Get and DeleteRange requests are not affected, and
 the issue affects only clusters with authentication enabled. This issue is fixed in versions 3.5.33,
 3.6.14, and 3.7.1. (CVE-2026-73499)

Solution

Update the go.etcd.io/etcd/server/v3 library and its related packages to version 3.5.33 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-73499

Plugin Details

Severity: High

ID: 459560

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS Score Source: CVE-2026-73499

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-73499