CVE-2026-73500
⚪ Do wiadomości
Wyciek pamięci w etcd umożliwia atakującemu zdalne zablokowanie usługi.
CVSS
0.0
EPSS
0.4%
Exploit
none
Vendor
Opis źródłowy (NVD)
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.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 0.0 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.4% |
| Opublikowano (NVD) | 2026-08-12 22:17:17 UTC |
| Ostatnia modyfikacja (NVD) | 2026-09-18 20:05:53 UTC |
Referencje
- https://github.com/etcd-io/etcd/commit/2e07efce9745004eb4773cffaada9b5cdf77cff2 ([email protected])
- https://github.com/etcd-io/etcd/commit/89ff6d50796049d4f1136915ba21504b76e7e372 ([email protected])
- https://github.com/etcd-io/etcd/commit/8e4dd0679a2c6b095d2a32a749fda2521c7809a3 ([email protected])
- https://github.com/etcd-io/etcd/commit/f73cba7d920019f91a1ea1f6697833e42731f057 ([email protected])
- https://github.com/etcd-io/etcd/pull/22130 ([email protected])
- https://github.com/etcd-io/etcd/releases/tag/v3.5.33 ([email protected])
- https://github.com/etcd-io/etcd/releases/tag/v3.6.14 ([email protected])
- https://github.com/etcd-io/etcd/releases/tag/v3.7.1 ([email protected])
- https://github.com/etcd-io/etcd/security/advisories/GHSA-6vch-q96h-7gc3 ([email protected])