libsoup: Generation of Error Message Containing Sensitive Information (CVE-2025-62168)

What is affected, what to do

Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure.

Update squid-cache Squid to version 7.2.

Affected

• squid-cache Squid lt *..7.2

Fixed in

• squid-cache Squid 7.2

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Metrics

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2

NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

Read in glossary

High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.

CRA

The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

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From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.

ISO/IEC 27001

ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

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Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.

Source: BSI WID Portal

Weakness classes (CWE)

• CWE-209Generation of Error Message Containing Sensitive Information

  Base

  The product generates an error message that includes sensitive information about its environment, users, or associated data.

  Entry at MITRE CWE-209

• CWE-550Server-generated Error Message Containing Sensitive Information

  Variant

  Certain conditions, such as network failure, will cause a server error message to be displayed.

  Entry at MITRE CWE-550

References & sources

• wireshark.orgsecurity/wnpa-sec-2025-07.htmlExploit, Issue tracking, Vendor advisory
• gitlab.comGitLab Issue #20860Issue tracking, Permissions required, Exploit, Issue tracking, Patch, Third-party advisory
• groups.google.comDjango releases announcementsadvisory, Mailing list, Release notes, Mailing list
• docs.djangoproject.comDjango security archivefix, Patch, Vendor advisory, Vendor advisory
• djangoproject.comDjango security releases issued: 5.2.9, 5.1.15, and 4.2.27fix, Patch, Vendor advisory, Vendor advisory
• GitHub Security Advisoriesadvisories/GHSA-vrcr-9hj9-jcg6advisory
• NVD (NIST)vuln/detail/CVE-2025-64460web
• github.comdjango/django/commit/0db9ea4669312f1f4973e09f4bca06ab9c1ec74bweb
• github.comdjango/django/commit/1dbd07a608e495a0c229edaaf84d58d8976313b5web
• github.comdjango/django/commit/4d2b8803bebcdefd2b76e9e8fc528d5fddea93f0web
• github.comdjango/django/commit/99e7d22f55497278d0bcb2e15e72ef532e62a31dweb
• docs.djangoproject.comen/dev/releases/securityweb
• github.comdjango/djangopackage
• github.compypa/advisory-database/tree/main/vulns/django/PYSEC-2025-109.ya…web
• djangoproject.comweblog/2025/dec/02/security-releasesweb
• bugzilla.mozilla.orgshow_bug.cgi?id=2000218
• mozilla.orgsecurity/advisories/mfsa2025-92
• mozilla.orgsecurity/advisories/mfsa2025-93
• mozilla.orgsecurity/advisories/mfsa2025-94
• mozilla.orgsecurity/advisories/mfsa2025-95

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

1. CVE Translated19.10.2026nvd@nist.gov

   • Translation: after Title: Squid-cache, Description: Squid es un proxy de almacenamiento en caché para la Web. En versiones de Squid anteriores a la 7.2, un fallo al redactar las credenciales de autenticación HTTP en el manejo de errores permite la revelación de información. La vulnerabilidad permite que un script omita las protecciones de seguridad del navegador y aprenda las credenciales que un cliente de confianza utiliza para autenticarse. Esto potencialmente permite a un cliente remoto identificar tokens de seguridad o credenciales utilizados internamente por una aplicación web que utiliza Squid para el equilibrio de carga de backend. Estos ataques no requieren que Squid esté configurado con autenticación HTTP. La vulnerabilidad está corregida en la versión 7.2. Como solución alternativa, deshabilite la información de depuración en los enlaces mailto del administrador generados por Squid configurando squid.conf con email_err_data off.