BIT-etcd-2026-73500

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/etcd/BIT-etcd-2026-73500.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-etcd-2026-73500
Aliases
Published
2026-08-18T10:03:48.377Z
Modified
2026-08-18T17:23:43.026808072Z
Summary
etcd: `tlsListener.acceptLoop` spawns unbounded handshake goroutines with no deadline
Details

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 network attacker who can reach an etcd TLS listener can open many TCP connections and never send a ClientHello. In client/pkg/transport/listener_tls.go, each connection handled by tlsListener.acceptLoop spawns a goroutine that blocks indefinitely inside tls.Conn.Handshake() and remains tracked in the pending map. Unbounded goroutine and map growth can exhaust memory in the etcd process, causing loss of availability for the cluster and, when etcd backs Kubernetes, the control plane. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1.

Database specific 
{
    "severity": "High",
    "cpes": [
        "cpe:2.3:a:etcd:etcd:*:*:*:*:*:go:*:*"
    ]
}
References

Affected packages

Bitnami / etcd

Package

Name
etcd
Purl
pkg:bitnami/etcd

Severity

  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.33
Introduced
3.6.0
Fixed
3.6.14
Introduced
3.7.0
Fixed
3.7.1

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/etcd/BIT-etcd-2026-73500.json"