CVE-2026-35457 PUBLISHED

libp2p-rust has unbounded rendezvous DISCOVER cookies enable remote memory exhaustion

Assigner: GitHub_M
Reserved: 02.04.2026 Published: 07.04.2026 Updated: 07.04.2026

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, the rendezvous server stores pagination cookies without bounds. An unauthenticated peer can repeatedly issue DISCOVER requests and force unbounded memory growth. This vulnerability is fixed in 0.17.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS Score: 8.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	libp2p
Product	rust-libp2p
Versions	Version < 0.17.1 is affected

References

https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-v5hw-cv9c-rpg7

Problem Types

CWE-770: Allocation of Resources Without Limits or Throttling CWE