> CVE-2026-73088 [HIGH]

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PUBLISHED
2026-08-11 17:19
MODIFIED
2026-08-11 17:19
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.66%
Top 48.5%
DATA SOURCES:
NVD 🔗 2026-08-11 RED HAT 🔗 2026-08-16 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-10-26

> DESCRIPTION

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, normalizeStats() in node.js, reached unconditionally through getStat() and loadStat() on every browserslist() call, processes untrusted browserslist-stats.json, opts.stats, and CLI --stats data with an unguarded for...in loop and plain-object bracket access and assignment, allowing inherited Object.prototype keys including __proto__, toString, valueOf, constructor, hasOwnProperty, and isPrototypeOf to cause an uncaught TypeError or modify the prototype of the returned normalized object. This issue is fixed in version 4.28.7.

> AFFECTED_PRODUCTS

Red Hat - Red Hat Discovery 2
Red Hat - Red Hat Hardened Images
Version: 1
Red Hat - Red Hat Hardened Images
Version: 4

> 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-248 CWE-1321

> CWE DETAILED DESCRIPTIONS

CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-1321: Improperly Controlled Modification of Object Prototype Attributes - The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
An update for Red Hat Hardened Images RPMs is now available.
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
An update for Red Hat Hardened Images RPMs is now available.
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
A Subscription Management tool for finding and reporting Red Hat product usage
Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update
Updated images are now available for Red Hat Ansible Automation Platform 2.2, which include new features, bug fixes, and enhancements for Red Hat Ansible Automation Platform integration with Red Hat D...
Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update
Updated images are now available for Red Hat Ansible Automation Platform 2.1, which include new features, bug fixes, and enhancements for Red Hat Ansible Automation Platform integration with Red Hat D...
Red Hat Security Advisory: Kiali 2.17.13 for Red Hat OpenShift Service Mesh 3.2
Kiali 2.17.13 for Red Hat OpenShift Service Mesh 3.2 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: Kiali 2.27.3 for Red Hat OpenShift Service Mesh 3.4
Kiali 2.27.3 for Red Hat OpenShift Service Mesh 3.4 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: Kiali 2.22.9 for Red Hat OpenShift Service Mesh 3.3
Kiali 2.22.9 for Red Hat OpenShift Service Mesh 3.3 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: Kiali 2.11.16 for Red Hat OpenShift Service Mesh 3.1
Kiali 2.11.16 for Red Hat OpenShift Service Mesh 3.1 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: Kiali 2.4.22 for Red Hat OpenShift Service Mesh 3.0
Kiali 2.4.22 for Red Hat OpenShift Service Mesh 3.0 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: OpenShift Container Platform 4.22.12 security and extras update
Red Hat OpenShift Container Platform release 4.22.12 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Containe...
Red Hat Security Advisory: OpenShift Container Platform 4.21.31 security and extras update
Red Hat OpenShift Container Platform release 4.21.31 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Containe...
Red Hat Security Advisory: General availability of the satellite/iop-host-inventory-frontend-rhel9 container image
A new satellite/iop-host-inventory-frontend-rhel9 container image is now generally available in the Red Hat container registry.
Red Hat Security Advisory: General availability of the satellite/iop-host-inventory-frontend-rhel9 container image
A new satellite/iop-host-inventory-frontend-rhel9 container image is now generally available in the Red Hat container registry.
Red Hat Security Advisory: Red Hat Quay 3.9.26
Red Hat Quay 3.9.26 is now available with bug fixes.
Red Hat Security Advisory: RHOAI 2.25.11 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Quay 3.10.26
Red Hat Quay 3.10.26 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.12.22
Red Hat Quay 3.12.22 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.14.9
Red Hat Quay 3.14.9 is now available with bug fixes.
Red Hat Security Advisory: RHTAS 1.3.8 - Red Hat Trusted Artifact Signer Release
The 1.3.8 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...
Red Hat Security Advisory: RHTAS 1.4.4 - Red Hat Trusted Artifact Signer Release
The 1.4.4 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: RHOAI 3.4.6 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.19.26 security, enhancement & bug fix update
Red Hat OpenShift Data Foundation 4.19.26 security, enhancement & bug fix update

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Browserslist: Uncaught crash / prototype write via untrusted browserslist-stats.json custom stats (normalizeStats)

AFFECTED PACKAGES:
Unknown / Unknown
211 versions affected
ALIASES:
GHSA-73wf-gq98-2v4g

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/08/2026 17:19
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') - The ...
Nouvelle valeur:
CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-1321: Improperly Controlled Modification of Object Prototype Attributes - The product receives input f...
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') - The ...
📊 ENRICHISSEMENT 16/08/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 16/08/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 4 Dernière mise à jour: 11 hours ago

> REFERENCES

https://github.com/browserslist/browserslist/commit/f9914ad9effc865ccc27d8162556...
https://github.com/browserslist/browserslist/releases/tag/4.28.7
https://github.com/browserslist/browserslist/security/advisories/GHSA-73wf-gq98-...
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