> CVE-2026-77384 [HIGH]

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PUBLISHED
2026-08-24 22:17
MODIFIED
2026-08-24 22:17
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.61%
Top 51.4%
DATA SOURCES:
NVD đź”— 2026-08-24 CWE MITRE đź”— 2026-09-01 FIRST EPSS đź”— 2026-10-25 OSV đź”— 2026-08-28

> DESCRIPTION

libp2p is a JavaScript implementation of the libp2p networking stack. Prior to version 4.2.9, the reservation refresh path in reservation-store.ts reuses the same retimeableSignal but unconditionally registers another abort listener on every refresh. As a result, a remote peer can repeatedly send valid RESERVE requests for the same reservation, causing unbounded listener and closure growth in @libp2p/circuit-relay-v2 relay servers and leading to denial of service. This issue is fixed in version 4.2.9.

> 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:N/A:H
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:N/A:H
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
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-400 CWE-772

> CWE DETAILED DESCRIPTIONS

CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | CWE-772: Missing Release of Resource after Effective Lifetime - The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

libp2p: Circuit relay v2 server reservation refresh leaks abort listeners and allows remote resource exhaustion

AFFECTED PACKAGES:
Unknown / Unknown
2815 versions affected
ALIASES:
GHSA-x787-gh7p-hmq7

> HISTORIQUE DES MODIFICATIONS

Première apparition
24/08/2026 22:17
Source: NVD
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | CWE-772: Missing Release of Resource after Effective Lifetime...
Total des modifications: 1 Dernière mise à jour: 1 month ago

> REFERENCES

https://github.com/libp2p/js-libp2p/commit/4bb8fbe8d3f3590e4af51a1f5f7de56fffa58...
https://github.com/libp2p/js-libp2p/releases/tag/circuit-relay-v2-v4.2.9
https://github.com/libp2p/js-libp2p/security/advisories/GHSA-x787-gh7p-hmq7
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