CVE-2026-34062
nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, `MessageCodec::read_request` and `read_response` call `read_to_end()` on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because `Behaviour::new` also sets `with_max_concurrent_streams(1000)`, the node exposes a much larger stalled-slot budget than the library default. The patch for this vulnerability is formally released as part of v1.3.0. No known workarounds are available.
Published:Apr 22, 2026
Last Modified:Apr 27, 2026
EPS:Apr 22, 2026
EPSS Score:0.00039
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Nimiq
Product
Network-libp2p
Nimiq
Network-libp2p
Vendor
Nimiq
Product
Nimiq Proof-of-stake
Nimiq
Nimiq Proof-of-stake
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
