> CVE-2025-61919 [HIGH]

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PUBLISHED
2025-10-10 20:15
MODIFIED
2025-10-14 19:36
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.65%
Top 48.7%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-10-28 OSV 🔗 2026-11-08

> DESCRIPTION

Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-urlencoded`, calling `rack.input.read(nil)` without enforcing a length or cap. Large request bodies can therefore be buffered completely into process memory before parsing, leading to denial of service (DoS) through memory exhaustion. Users should upgrade to Rack version 2.2.20, 3.1.18, or 3.2.3, anu of which enforces form parameter limits using `query_parser.bytesize_limit`, preventing unbounded reads of `application/x-www-form-urlencoded` bodies. Additionally, enforce strict maximum body size at the proxy or web server layer (e.g., Nginx `client_max_body_size`, Apache `LimitRequestBody`).

> 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

> 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

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: pcs security update
An update for pcs 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 (CVSS...
Red Hat Security Advisory: pcs security update
An update for pcs 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 (CVS...
Red Hat Security Advisory: pcs security update
An update for pcs 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 (CVSS...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerab...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Lin...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Commo...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Commo...
Red Hat Security Advisory: Satellite 6.15.5.6 Async Update
An update is now available for Red Hat Satellite 6.15 for RHEL 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS...
Red Hat Security Advisory: Satellite 6.16.5.5 Async Update
An update is now available for Red Hat Satellite 6.16 for RHEL 8 and RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring S...
Red Hat Security Advisory: Satellite 6.17.6 Async Update
A new release is now available for Red Hat Satellite 6.17 for RHEL 9. 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: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product...
Red Hat Security Advisory: pcs security update
An update for pcs 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 (CVSS...
Red Hat Security Advisory: pcs security update
An update for pcs 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 (CVS...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnera...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-6xw4-3v39-52mm HIGH

Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

AFFECTED PACKAGES:
RUBYGEMS / rack
>= 3.2, < 3.2.3
Fixed in: 3.2.3
RUBYGEMS / rack
>= 3.0, < 3.1.18
Fixed in: 3.1.18
RUBYGEMS / rack
< 2.2.20
Fixed in: 2.2.20

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing

AFFECTED PACKAGES:
Unknown / Unknown
60 versions affected
ALIASES:
GHSA-6xw4-3v39-52mm

> HISTORIQUE DES MODIFICATIONS

Première apparition
10/10/2025 20:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 15:08
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:03
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:03
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 1 year ago
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