CVE-2026-35049

wire-ios is an iOS client for the Wire secure messaging application. Prior to version 4.16.0, upon receiving a crafted malicious Proteus external message with an encrypted payload that is shorter than 16 bytes, the Wire iOS client crashes. The crash is triggered automatically after message receival with no user interaction. Since the malicious message persists in the conversation, the app enters a crash loop on relaunch and cannot be reopened until the local state is wiped. This issue has been fixed with version 4.16.0 which introduces the missing length check and is available via the App Store. No known workarounds are available.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/wireapp/wire-ios/security/advisories/GHSA-v6wg-c7qc-x66g

Configurations

No configuration.

History

22 Jul 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) wire-ios es un cliente de iOS para la aplicación de mensajería segura Wire. Antes de la versión 4.16.0, al recibir un mensaje externo Proteus malicioso y manipulado con una carga útil cifrada que es más corta de 16 bytes, el cliente de iOS de Wire falla. El fallo se activa automáticamente después de la recepción del mensaje sin interacción del usuario. Dado que el mensaje malicioso persiste en la conversación, la aplicación entra en un bucle de fallos al reiniciar y no puede ser reabierta hasta que se borre el estado local. Este problema ha sido solucionado con la versión 4.16.0, que introduce la comprobación de longitud faltante y está disponible a través de la App Store. No se conocen soluciones alternativas disponibles.

02 Jun 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-02 20:16

Updated : 2026-07-22 19:10

NVD link : CVE-2026-35049

Mitre link : CVE-2026-35049

CVE.ORG link : CVE-2026-35049

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-191

Integer Underflow (Wrap or Wraparound)

{"id": "CVE-2026-35049", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35049", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-03T13:55:15.710295Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "wireapp", "product": "wire-ios", "versions": [{"status": "affected", "version": "< 4.16.0"}]}]}], "published": "2026-06-02T20:16:35.003", "references": [{"url": "https://github.com/wireapp/wire-ios/security/advisories/GHSA-v6wg-c7qc-x66g", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-191"}]}], "descriptions": [{"lang": "en", "value": "wire-ios is an iOS client for the Wire secure messaging application. Prior to version 4.16.0, upon receiving a crafted malicious Proteus external message with an encrypted payload that is shorter than 16 bytes, the Wire iOS client crashes. The crash is triggered automatically after message receival with no user interaction. Since the malicious message persists in the conversation, the app enters a crash loop on relaunch and cannot be reopened until the local state is wiped. This issue has been fixed with version 4.16.0 which introduces the missing length check and is available via the App Store. No known workarounds are available."}, {"lang": "es", "value": "wire-ios es un cliente de iOS para la aplicaci\u00f3n de mensajer\u00eda segura Wire. Antes de la versi\u00f3n 4.16.0, al recibir un mensaje externo Proteus malicioso y manipulado con una carga \u00fatil cifrada que es m\u00e1s corta de 16 bytes, el cliente de iOS de Wire falla. El fallo se activa autom\u00e1ticamente despu\u00e9s de la recepci\u00f3n del mensaje sin interacci\u00f3n del usuario. Dado que el mensaje malicioso persiste en la conversaci\u00f3n, la aplicaci\u00f3n entra en un bucle de fallos al reiniciar y no puede ser reabierta hasta que se borre el estado local. Este problema ha sido solucionado con la versi\u00f3n 4.16.0, que introduce la comprobaci\u00f3n de longitud faltante y est\u00e1 disponible a trav\u00e9s de la App Store. No se conocen soluciones alternativas disponibles."}], "lastModified": "2026-07-22T19:10:00.120", "sourceIdentifier": "security-advisories@github.com"}