> CVE-2026-24708 [HIGH]

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PUBLISHED
2026-02-18 18:24
MODIFIED
2026-02-18 18:24
CVSS_SCORE V3
8.2
EPSS (Prob. Exploit)
0.42%
Top 63.8%
DATA SOURCES:
NVD 🔗 2026-02-18 RED HAT 🔗 2026-02-22 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-04

> DESCRIPTION

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.

> 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:H/PR:L/UI:N/S:C/C:N/I:H/A:H
EXPLOITABILITY
1.8
IMPACT
5.8

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/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
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà 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
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

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

> WEAKNESSES

CWE-669

> CWE DETAILED DESCRIPTIONS

CWE-669: Incorrect Resource Transfer Between Spheres - The product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a manner that provides unintended control over that resource.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) security update
An update for openstack-nova is now available for Red Hat OpenStack Services on OpenShift 18.0.18 (Antelope). Red Hat Product Security has rated this update as having a security impact of Important....
Red Hat Security Advisory: Red Hat OpenStack Platform 16.2 security advisory
An update for Red Hat OpenStack Platform 16.2 (Train) is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 security and bug fix advisory
Updated packages that resolve various issues are now available for Red Hat OpenStack Platform 17.1 (Wallaby) for Red Hat Enterprise Linux (RHEL) 9.2. Red Hat Product Security has rated this update as...
Red Hat Security Advisory: Red Hat OpenStack Platform 13.0 security advisory
Updated packages that resolve security issues are now available for Red Hat OpenStack Platform 13.0 for Red Hat Enterprise Linux (RHEL) 7. Red Hat Product Security has rated this update as having a s...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-m4f3-qp2w-gwh6 HIGH

OpenStack Nova calls qemu-img without format restrictions for resize

AFFECTED PACKAGES:
PIP / Nova
<= 30.2.1
PIP / Nova
>= 31.0.0.0rc1, <= 31.2.0
PIP / Nova
>= 32.0.0.0rc1, <= 32.1.0

> HISTORIQUE DES MODIFICATIONS

Première apparition
18/02/2026 18:24
Source: NVD
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-669: Incorrect Resource Transfer Between Spheres - The product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a...
📊 ENRICHISSEMENT 22/02/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 23:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 22:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 21:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 20:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 19:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/02/2026 19:30
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 8 Dernière mise à jour: 8 months ago

> REFERENCES

https://bugs.launchpad.net/nova/+bug/2137507
https://www.openwall.com/lists/oss-security/2026/02/17/7
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