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CVE-2026-34062

Nimiq has Allocation of Resources Without Limits or Throttling in its libp2p request/response

Published: Apr 22, 2026Updated: Apr 22, 2026 Sources: CVE List NVD
NVD MITRE
5.3CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low

Weaknesses

CWE-770

Affected Products

network-libp2p
nimiq

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/nimiq/core-rs-albatross/commit/c021a5337b808c73571b44999f9753051bac7508
github.com
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0
github.com
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-gh7r-qh4p-q4fr
github.com

Timeline

Published
Apr 22, 2026
Last Updated
Apr 22, 2026

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