CVE-2026-44505: CWE-755: Improper Handling of Exceptional Conditions in nimiq core-rs-albatross
A vulnerability in the Nimiq core-rs-albatross Rust implementation prior to version 1. 4. 0 causes improper handling of exceptional conditions during DHT record verification. When a peer returns a FoundRecord and verification fails, the system logs the error and returns early without cleaning up query state, potentially causing the caller to hang indefinitely. This issue has been fixed in version 1. 4. 0.
AI Analysis
Technical Summary
CVE-2026-44505 describes an improper handling of exceptional conditions (CWE-755) in the Nimiq core-rs-albatross implementation of the Albatross consensus protocol. Specifically, in versions before 1.4.0, the network-libp2p component's handle_dht_get function does not properly clean up per-query bookkeeping when dht_verifier.verify returns an error on a FoundRecord. This leads to the Network::dht_get future awaiting a oneshot without timeout, causing indefinite hangs. The issue is resolved in version 1.4.0.
Potential Impact
The vulnerability can cause denial of service by making the Network::dht_get caller hang indefinitely due to unhandled verification errors and lack of cleanup. There is no impact on confidentiality or integrity. The CVSS score is 5.3 (medium severity) reflecting a network attack vector with no privileges required and no user interaction.
Mitigation Recommendations
Upgrade to Nimiq core-rs-albatross version 1.4.0 or later, where this issue has been patched. No other mitigation is indicated. Patch status is confirmed by the vendor stating the fix is in version 1.4.0.
CVE-2026-44505: CWE-755: Improper Handling of Exceptional Conditions in nimiq core-rs-albatross
Description
A vulnerability in the Nimiq core-rs-albatross Rust implementation prior to version 1. 4. 0 causes improper handling of exceptional conditions during DHT record verification. When a peer returns a FoundRecord and verification fails, the system logs the error and returns early without cleaning up query state, potentially causing the caller to hang indefinitely. This issue has been fixed in version 1. 4. 0.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44505 describes an improper handling of exceptional conditions (CWE-755) in the Nimiq core-rs-albatross implementation of the Albatross consensus protocol. Specifically, in versions before 1.4.0, the network-libp2p component's handle_dht_get function does not properly clean up per-query bookkeeping when dht_verifier.verify returns an error on a FoundRecord. This leads to the Network::dht_get future awaiting a oneshot without timeout, causing indefinite hangs. The issue is resolved in version 1.4.0.
Potential Impact
The vulnerability can cause denial of service by making the Network::dht_get caller hang indefinitely due to unhandled verification errors and lack of cleanup. There is no impact on confidentiality or integrity. The CVSS score is 5.3 (medium severity) reflecting a network attack vector with no privileges required and no user interaction.
Mitigation Recommendations
Upgrade to Nimiq core-rs-albatross version 1.4.0 or later, where this issue has been patched. No other mitigation is indicated. Patch status is confirmed by the vendor stating the fix is in version 1.4.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-06T18:28:20.886Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a28a8098dd33fbd8595f11d
Added to database: 6/9/2026, 11:55:53 PM
Last enriched: 6/10/2026, 12:12:21 AM
Last updated: 6/10/2026, 5:08:24 AM
Views: 3
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