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TI-2026-28922 Aliases CVE-2026-40094

nimiq-blockchain: network-libp2p untrusted peer can crash address book via empty peer contact addresses

Priority LOW 20CWE-754Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In versions 1.3.0 and prior, network-libp2p discovery accepts signed PeerContact updates from untrusted peers and stores them in a peer contact book, eventually leading to address book crash. A PeerContact can legally contain an empty addresses list (no intrinsic validation enforces non-empty). Later, PeerContactBook::known_peers builds an address book by taking addresses.first().expect("every peer should have at least one address"). If the attacker has inserted a signed peer contact with addresses=[], any call to get_address_book (RPC/web client) can panic and crash the node/RPC task depending on panic settings. This issue has been fixed in version 1.4.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00302 23rd percentileScored 2026-11-07
Fix Fixed core-rs-albatross (nimiq): 1.4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nimiqcore-rs-albatrossbefore 1.4.01.4.0Patch availableCNA
  • core-rs-albatross Vendornimiq Affected before 1.4.0 Fixed in 1.4.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:*:*:*——nimiq
  • cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:*:*:* Versions — — ·nimiq

Remediation

  • Fix · CNA core-rs-albatross (nimiq) Fixed in 1.4.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40094

References

Other 3

  • TI-2026-26389 nimiq-account: Vesting insufficient funds error can panic CVSS 3.1HIGH 8.2
  • TI-2026-25867 nimiq-block has skip block quorum bypass via out-of-range BitSet indices & u16 truncation CVSS 3.1CRITICAL 9.6
  • TI-2026-34086 Nimiq: Validity store off by one error CVSS 3.1HIGH 7.5
  • TI-2026-28920 nimiq-keys: Unchecked Ed25519 signature length in TaggedPublicKey::verify causes remote node panic via DHT CVSS 3.1HIGH 7.5
  • TI-2025-29800 nimiq-network-libp2p Uncontrolled Resource Consumption vulnerability CVSS 3.1HIGH 7.5
  • TI-2026-34224 nimiq-primitives: Panic DoS in trie chunk processing via ROOT-keyed item CVSS 3.1HIGH 7.5
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences