CVE-2026-32096
Plunk has SSRF via unvalidated AWS SNS SubscriptionConfirmation in POST /webhooks/sns
- State
- Published
- Severity
- 9.3 Critical
- Published
- Mar 11, 2026
- Updated
- Mar 12, 2026
- Reserved
- Mar 10, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.3 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N | GitHub_M |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
plunkuseplunk |
|
References
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