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Squid CVE-2026-50012

| EUVDEUVD-2026-44961 MEDIUM
Improper Input Validation (CWE-20)
2026-06-12
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
SUSE
8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat
5.5 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

Lifecycle Timeline

3
Patch available
Jul 16, 2026 - 18:18 EUVD
CVSS changed
Jul 16, 2026 - 17:22 NVD
5.5 (MEDIUM)
Analysis Generated
Jun 12, 2026 - 12:45 vuln.today

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

AnalysisAI

Squid caching proxy is affected by CVE-2026-50012, disclosed via the oss-security mailing list on 2026-06-12 as a pre-NVD advisory. No technical details - description, affected versions, vulnerability class, or impact - have been made available in the current intelligence snapshot. The advisory was bundled with a sibling disclosure (CVE-2026-47729) from the same Squid maintainer post, suggesting a coordinated release, but no further differentiation between the two CVEs is derivable from available data. No exploitation, no KEV listing, and no EPSS score are present at time of analysis.

Technical ContextAI

Squid is a widely deployed open-source caching proxy supporting HTTP, HTTPS, FTP, and other protocols, commonly used in enterprise and ISP environments for traffic caching, filtering, and access control. No CWE identifier has been assigned, and no CPE string has been published, making it impossible to identify the specific component, subsystem, or protocol handler affected. The root cause class, attack surface, and technical mechanism are entirely unknown at this stage of disclosure. The oss-security post attributes the advisory to Amos Jeffries (squid3@...), a known Squid maintainer, which lends authenticity to the disclosure but provides no additional technical context.

RemediationAI

No patch version, vendor advisory URL, or workaround has been identified in the available intelligence. Affected version range is unknown, making targeted upgrade guidance impossible. Until the oss-security thread or NVD entry provides version and fix details, organizations running Squid should monitor the official Squid advisories (https://www.squid-cache.org/Advisories/) and the oss-security list. As a general precautionary measure - not a confirmed mitigation for this specific CVE - operators may consider restricting external access to the Squid management interface and ensuring Squid is not exposed to untrusted networks without access controls. These are generic hardening steps with no confirmed trade-off for this CVE; apply only as interim posture while awaiting full disclosure.

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP7 Affected
SUSE Linux Enterprise Module for Server Applications 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Server 16.0 Affected
SUSE Linux Enterprise Server 16.1 Affected

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CVE-2026-50012 vulnerability details – vuln.today

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