> CVE-2026-46369 [HIGH]

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PUBLISHED
2026-08-26 20:17
MODIFIED
2026-08-26 20:17
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.55%
Top 55.3%
DATA SOURCES:
NVD đź”— 2026-08-26 CWE MITRE đź”— 2026-09-01 FIRST EPSS đź”— 2026-10-18 GITHUB đź”— 2026-10-29 OSV đź”— 2026-10-26

> DESCRIPTION

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-193 CWE-294

> CWE DETAILED DESCRIPTIONS

CWE-193: Off-by-one Error - A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. | CWE-294: Authentication Bypass by Capture-replay - A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

> GITHUB SECURITY ADVISORY

GHSA-3763-qp59-59vf HIGH

nimiq-blockchain: Validity store off by one error

AFFECTED PACKAGES:
RUST / nimiq-blockchain
<= 1.5.0
Fixed in: 1.5.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Nimiq: Validity store off by one error

AFFECTED PACKAGES:
Unknown / Unknown
86 versions affected
ALIASES:
GHSA-3763-qp59-59vf

> HISTORIQUE DES MODIFICATIONS

Première apparition
26/08/2026 20:17
Source: NVD
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-193: Off-by-one Error - A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. | CWE-294: Authentication Bypass by Capture-replay - A...
Total des modifications: 1 Dernière mise à jour: 1 month ago

> REFERENCES

https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c7307978...
https://github.com/nimiq/core-rs-albatross/pull/3772
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59...
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