> CVE-2026-102558 [HIGH]

« BACK_TO_HOME
PUBLISHED
2026-09-29 18:17
MODIFIED
2026-09-29 18:17
CVSS_SCORE V3
8.6
EPSS (Prob. Exploit)
0.39%
Top 68.7%
DATA SOURCES:
NVD đź”— 2026-09-29 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-22 OSV đź”— 2026-10-19 MSRC đź”— 2026-10-04

> DESCRIPTION

A flaw was found in libsoup. When max-incoming-payload-size is unlimited (0), SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data.

> 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:L/I:L/A:H
EXPLOITABILITY
3.9
IMPACT
4.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-125

> CWE DETAILED DESCRIPTIONS

CWE-125: Out-of-bounds Read - The product reads data past the end, or before the beginning, of the intended buffer.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: libsoup security update
An update for libsoup is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: libsoup3 security update
An update for libsoup3 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: libsoup security update
An update for libsoup is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth

AFFECTED PACKAGES:
Unknown / Unknown
262 versions affected
Unknown / Unknown
262 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
29/09/2026 18:17
Source: NVD
đź“Š ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-125: Out-of-bounds Read - The product reads data past the end, or before the beginning, of the intended buffer.
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-102558
https://bugzilla.redhat.com/show_bug.cgi?id=2543274
« BACK_TO_HOME