What is the CVSS score of CVE-2026-32096?

CVE-2026-32096 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Plunk are affected by CVE-2026-32096?

Plunk email platform versions up to 0.7.0 contain a critical server-side request forgery vulnerability (CVSS 9.3) that could allow attackers to bypass security controls and access internal systems or…

How to fix or mitigate CVE-2026-32096?

Within 24 hours: Identify all instances running Plunk version 0.7.0 or earlier and isolate them from production networks if possible; disable external access to affected instances and document inventory. Within 7 days: Implement network segmentation to restrict Plunk instances from accessing internal systems, AWS metadata endpoints, and sensitive services; deploy WAF rules to block suspicious request patterns. Within 30 days: Upgrade to Plunk version 0.7.1 or later once available; if upgrade is not feasible, evaluate alternative email solutions or implement comprehensive air-gapping of affected systems.

Plunk CVE-2026-32096

CRITICAL

Server-Side Request Forgery (SSRF) (CWE-918)

2026-03-11 security-advisories@github.com

SSRF Plunk

9.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.3 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:07 vuln.today

CVE Published

Mar 11, 2026 - 20:16 nvd

CRITICAL 9.3

DescriptionGitHub Advisory

Plunk is an open-source email platform built on top of AWS SES. Prior to 0.7.0, a Server-Side Request Forgery (SSRF) vulnerability existed in the SNS webhook handler. An unauthenticated attacker could send a crafted request that caused the server to make an arbitrary outbound HTTP GET request to any host accessible from the server. This vulnerability is fixed in 0.7.0.