> CVE-2026-61741 [CRITICAL]

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PUBLISHED
2026-09-24 18:17
MODIFIED
2026-09-24 18:17
CVSS_SCORE V3
9.3
EPSS (Prob. Exploit)
0.29%
Top 79.3%
DATA SOURCES:
NVD đź”— 2026-09-24 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-21 GITHUB đź”— 2026-10-01 OSV đź”— 2026-10-19

> DESCRIPTION

http4s-scala-xml provides `EntityDecoder[F, scala.xml.Elem]` instances that parse XML message bodies. Prior to versions 0.24.1 and 1.0.0-M39, these decoders used a `javax.xml.parsers.SAXParserFactory` obtained from `SAXParserFactory.newInstance` without any security configuration. With the JDK's default settings, the parser resolves DOCTYPE declarations, external general and parameter entities, and external DTDs.An application that uses these decoders to parse untrusted XML is vulnerable to XML External Entity (XXE) attacks. An attacker can craft a request that discloses local files readable by the service process, performs server-side request forgery (SSRF) against internal network resources, and/or causes denial of service through entity expansion. Versions 0.24.1 and 1.0.0-M39 fix the issue.

> 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:C/C:H/I:N/A:L
EXPLOITABILITY
3.9
IMPACT
4.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
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
Changed (C)
Impact s'Ă©tend au-delĂ  du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
Low
Interruption partielle du service possible

> WEAKNESSES

CWE-611

> CWE DETAILED DESCRIPTIONS

CWE-611: Improper Restriction of XML External Entity Reference - The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

> GITHUB SECURITY ADVISORY

GHSA-cjx3-73hr-rpw7 CRITICAL

http4s-scala-xml has an XML External Entity (XXE) processing issue

AFFECTED PACKAGES:
MAVEN / org.http4s:http4s-scala-xml_3
>= 1.0.0-M1, <= 1.0.0-M38.1
Fixed in: 1.0.0-M39
MAVEN / org.http4s:http4s-scala-xml_3
<= 0.24.0
Fixed in: 0.24.1
MAVEN / org.http4s:http4s-scala-xml_2.13
>= 1.0.0-M1, <= 1.0.0-M38.1
Fixed in: 1.0.0-M39
MAVEN / org.http4s:http4s-scala-xml_2.13
<= 0.24.0
Fixed in: 0.24.1
MAVEN / org.http4s:http4s-scala-xml_2.12
<= 0.24.0
Fixed in: 0.24.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

http4s-scala-xml has an XML External Entity (XXE) processing issue

AFFECTED PACKAGES:
Unknown / Unknown
10 versions affected
ALIASES:
GHSA-cjx3-73hr-rpw7

> HISTORIQUE DES MODIFICATIONS

Première apparition
24/09/2026 18:17
Source: NVD
đź“Š ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-611: Improper Restriction of XML External Entity Reference - The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere ...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/http4s/http4s-scala-xml/security/advisories/GHSA-cjx3-73hr-rp...
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