> CVE-2026-48736 [MEDIUM]

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PUBLISHED
2026-07-14 20:17
MODIFIED
2026-07-14 20:25
CVSS_SCORE V3
6.9
EPSS (Prob. Exploit)
0.57%
Top 53.5%
DATA SOURCES:
NVD 🔗 2026-07-14 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-11-02

> DESCRIPTION

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATE_SUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowing attacker-supplied URLs to represent private IPv4 targets in forms that IpUtils::isPrivateIp() did not block. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-184 CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-184: Incomplete List of Disallowed Inputs - The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete. | CWE-918: Server-Side Request Forgery - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

> GITHUB SECURITY ADVISORY

GHSA-38cx-cq6f-5755 MODERATE

Symfony: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient

AFFECTED PACKAGES:
COMPOSER / symfony/symfony
>= 8.0.0, < 8.0.13
Fixed in: 8.0.13
COMPOSER / symfony/symfony
>= 7.0.0, < 7.4.13
Fixed in: 7.4.13
COMPOSER / symfony/symfony
>= 6.4.0, < 6.4.41
Fixed in: 6.4.41
COMPOSER / symfony/symfony
>= 5.4.0, < 5.4.53
Fixed in: 5.4.53
COMPOSER / symfony/http-foundation
>= 8.0.0, < 8.0.13
Fixed in: 8.0.13
COMPOSER / symfony/http-foundation
>= 7.0.0, < 7.4.13
Fixed in: 7.4.13
COMPOSER / symfony/http-foundation
>= 6.4.0, < 6.4.41
Fixed in: 6.4.41
COMPOSER / symfony/http-client
>= 5.4.0, < 5.4.53
Fixed in: 5.4.53

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Symfony: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient

AFFECTED PACKAGES:
Unknown / Unknown
125 versions affected
ALIASES:
GHSA-38cx-cq6f-5755

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/07/2026 20:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-184: Incomplete List of Disallowed Inputs - The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise requ...
Nouvelle valeur:
CWE-184: Incomplete List of Disallowed Inputs - The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise requ...
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-184: Incomplete List of Disallowed Inputs - The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise requ...
Total des modifications: 2 Dernière mise à jour: 5 days ago

> REFERENCES

https://github.com/symfony/symfony/commit/82765368cf74177c36613575182f168a2eb765...
https://github.com/symfony/symfony/commit/85b831555be8ea1f43bf01078afe87bc4c92f6...
https://github.com/symfony/symfony/releases/tag/v5.4.53
https://github.com/symfony/symfony/releases/tag/v6.4.41
https://github.com/symfony/symfony/releases/tag/v7.4.13
https://github.com/symfony/symfony/security/advisories/GHSA-38cx-cq6f-5755
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