> CVE-2026-54283 [HIGH]

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PUBLISHED
2026-06-22 18:16
MODIFIED
2026-06-22 18:28
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.48%
Top 58.5%
DATA SOURCES:
NVD đź”— 2026-06-22 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 GITHUB đź”— 2026-11-05 OSV đź”— 2026-11-02

> DESCRIPTION

Starlette is a lightweight ASGI framework/toolkit. From 0.4.1 until 1.3.1, request.form() accepts max_fields and max_part_size to bound resource consumption while parsing form data. These limits are enforced for multipart/form-data, but silently ignored for application/x-www-form-urlencoded. An unauthenticated attacker can therefore send a urlencoded body with an arbitrarily large number of fields or an arbitrarily large field, even when the application configured limits it believed would apply. This vulnerability is fixed in 1.3.1.

> 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-770

> CWE DETAILED DESCRIPTIONS

CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

> RED HAT SECURITY ADVISORIES

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Red Hat AI Inference Server 3.2.2 (ROCm) is now available.
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Red Hat AI Inference Server 3.2.2 (CUDA) is now available.
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An update is now available for Red Hat Ansible Automation Platform 2.7
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An update is now available for Red Hat Ansible Automation Platform 2.6
Red Hat Security Advisory: Migration Toolkit for Applications
A new version of Migration Toolkit for Applications (MTA) is now available.
Red Hat Security Advisory: satellite/iop-advisor-engine-rhel9 container image available as a Technology Preview
A new satellite/iop-advisor-engine-rhel9 container image is now available as a Technology Preview in the Red Hat container registry.
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An update is now available for Red Hat Ansible Automation Platform 2.6
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An update is now available for Red Hat Ansible Automation Platform 2.7
Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
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Red Hat AI Inference Server 3.2.2 (CUDA) is now available.
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Red Hat AI Inference 3.4.5 (rocm) is now available.
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Red Hat AI Inference 3.4.5 (cuda) is now available.
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Red Hat AI Inference 3.4.5 (cpu) is now available.
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Red Hat AI Inference 3.4.5 (rocm) is now available.
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Red Hat AI Inference 3.4.5 (cuda) is now available.
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Red Hat AI Inference 3.4.5 (spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
Red Hat AI Inference 3.4.5 (cpu) is now available.
Red Hat Security Advisory: RHOAI 3.3.7 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container disk images are now available.
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.

> GITHUB SECURITY ADVISORY

GHSA-82w8-qh3p-5jfq HIGH

Starlette: request.form() limits silently ignored for application/x-www-form-urlencoded enable DoS

AFFECTED PACKAGES:
PIP / starlette
>= 0.4.1, < 1.3.1
Fixed in: 1.3.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Starlette: request.form() limits silently ignored for application/x-www-form-urlencoded enable DoS

AFFECTED PACKAGES:
Unknown / Unknown
156 versions affected
ALIASES:
GHSA-82w8-qh3p-5jfq, PYSEC-2026-249

> HISTORIQUE DES MODIFICATIONS

Première apparition
22/06/2026 18:16
Source: NVD
đź“Š ENRICHISSEMENT 01/07/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the ...
Total des modifications: 1 Dernière mise à jour: 4 months ago

> REFERENCES

https://github.com/Kludex/starlette/security/advisories/GHSA-82w8-qh3p-5jfq
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