CVE-2026-34062: CWE-770: Allocation of Resources Without Limits or Throttling in nimiq network-libp2p
CVE-2026-34062 is a medium severity vulnerability in the nimiq network-libp2p prior to version 1. 3. 0. It involves allocation of resources without limits or throttling, where inbound substreams can be kept open indefinitely by a remote peer sending only partial frames. This leads to a larger stalled-slot budget than intended, potentially causing denial of service by exhausting resources. The issue is addressed in version 1. 3. 0, which includes a formal patch. No known workarounds exist.
AI Analysis
Technical Summary
The vulnerability in nimiq-libp2p versions before 1.3.0 arises because the MessageCodec::read_request and read_response methods call read_to_end() on inbound substreams, allowing a remote peer to send partial frames and keep the substream open indefinitely. Additionally, the Behaviour::new method sets with_max_concurrent_streams(1000), which exposes a larger stalled-slot budget than the default in the underlying libp2p library. This combination enables resource exhaustion by holding many stalled substreams open simultaneously. The patch released in version 1.3.0 addresses this issue by limiting resource allocation and throttling inbound streams.
Potential Impact
The vulnerability can lead to denial of service conditions by allowing remote peers to exhaust resources on nodes running vulnerable versions of nimiq network-libp2p. There is no impact on confidentiality or integrity, but availability is affected due to resource exhaustion from stalled substreams. No known exploits are reported in the wild.
Mitigation Recommendations
A patch fixing this vulnerability is included in nimiq network-libp2p version 1.3.0. Users should upgrade to version 1.3.0 or later to remediate the issue. No workarounds are currently known. Patch status is not explicitly confirmed beyond the formal release in v1.3.0; users should verify with the vendor advisory for the latest remediation guidance.
CVE-2026-34062: CWE-770: Allocation of Resources Without Limits or Throttling in nimiq network-libp2p
Description
CVE-2026-34062 is a medium severity vulnerability in the nimiq network-libp2p prior to version 1. 3. 0. It involves allocation of resources without limits or throttling, where inbound substreams can be kept open indefinitely by a remote peer sending only partial frames. This leads to a larger stalled-slot budget than intended, potentially causing denial of service by exhausting resources. The issue is addressed in version 1. 3. 0, which includes a formal patch. No known workarounds exist.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in nimiq-libp2p versions before 1.3.0 arises because the MessageCodec::read_request and read_response methods call read_to_end() on inbound substreams, allowing a remote peer to send partial frames and keep the substream open indefinitely. Additionally, the Behaviour::new method sets with_max_concurrent_streams(1000), which exposes a larger stalled-slot budget than the default in the underlying libp2p library. This combination enables resource exhaustion by holding many stalled substreams open simultaneously. The patch released in version 1.3.0 addresses this issue by limiting resource allocation and throttling inbound streams.
Potential Impact
The vulnerability can lead to denial of service conditions by allowing remote peers to exhaust resources on nodes running vulnerable versions of nimiq network-libp2p. There is no impact on confidentiality or integrity, but availability is affected due to resource exhaustion from stalled substreams. No known exploits are reported in the wild.
Mitigation Recommendations
A patch fixing this vulnerability is included in nimiq network-libp2p version 1.3.0. Users should upgrade to version 1.3.0 or later to remediate the issue. No workarounds are currently known. Patch status is not explicitly confirmed beyond the formal release in v1.3.0; users should verify with the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-25T16:21:40.866Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e9290319fe3cd2cde95594
Added to database: 4/22/2026, 8:01:07 PM
Last enriched: 4/30/2026, 8:14:57 AM
Last updated: 6/7/2026, 12:29:09 AM
Views: 47
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