> CVE-2026-69202 [HIGH]

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PUBLISHED
2026-09-15 20:17
MODIFIED
2026-09-15 20:17
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.63%
Top 50.4%
DATA SOURCES:
NVD đź”— 2026-09-15 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-10-15 OSV đź”— 2026-09-22

> DESCRIPTION

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s HTTP/2 flow-control window is replenished according to bytes received from the network rather than bytes consumed by the application, while each stream stores DATA in an unbounded channel. A hostile peer can therefore send a body faster than a slow or non-draining application consumes it, retaining payloads in heap on an ember-server or ember-client configured with withHttp2. The patch bounds the per-stream H2Connection body channel so application consumption applies backpressure. This issue is fixed in versions 0.23.35 and 1.0.0-M47.

> 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-400 CWE-770

> CWE DETAILED DESCRIPTIONS

CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | 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.

> GITHUB SECURITY ADVISORY

GHSA-6m4x-pp6q-5jmm HIGH

Http4s Ember HTTP/2: unbounded inbound body buffering

AFFECTED PACKAGES:
MAVEN / org.http4s:http4s-ember-core_3
>= 1.0.0-M1, <= 1.0.0-M46
Fixed in: 1.0.0-M47
MAVEN / org.http4s:http4s-ember-core_2.13
>= 1.0.0-M1, <= 1.0.0-M46
Fixed in: 1.0.0-M47
MAVEN / org.http4s:http4s-ember-core_3
<= 0.23.34
Fixed in: 0.23.35
MAVEN / org.http4s:http4s-ember-core_2.13
<= 0.23.34
Fixed in: 0.23.35
MAVEN / org.http4s:http4s-ember-core_2.12
<= 0.23.34
Fixed in: 0.23.35

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Http4s Ember HTTP/2: unbounded inbound body buffering

AFFECTED PACKAGES:
Unknown / Unknown
75 versions affected
ALIASES:
GHSA-6m4x-pp6q-5jmm

> HISTORIQUE DES MODIFICATIONS

Première apparition
15/09/2026 20:17
Source: NVD
đź“Š ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-400: Uncontrolled Resource Consumption - The product does not properly control the allocation and maintenance of a limited resource. | CWE-770: Allocation of Resources Without Limits or Throttling...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/http4s/http4s/commit/22d2335975d02dc9fb9fb75cfe002279521d86ac
https://github.com/http4s/http4s/releases/tag/v0.23.35
https://github.com/http4s/http4s/releases/tag/v1.0.0-M47
https://github.com/http4s/http4s/security/advisories/GHSA-6m4x-pp6q-5jmm
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