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CVE-2026-32096

Useplunk Plunk server-side request forgery (SSRF)

9.3 CRITICALEPSS 0.45%
  1. Published11 Mar 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Affected products

Useplunk Plunk< 0.7.0

Remediation

Fixed in
Useplunk Plunk≥ 0.7.0

References

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Frequently asked

Is CVE-2026-32096 being actively exploited?

CVE-2026-32096 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.45%.

How severe is CVE-2026-32096?

CVE-2026-32096 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2026-32096?

Affected products include Useplunk Plunk.

How do I fix CVE-2026-32096?

Upgrade affected software to a fixed version, for example Useplunk Plunk 0.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32096 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.