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NVD description
Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supplied values for from.name, subject, custom header keys/values, and attachment filenames were interpolated directly into raw MIME messages without sanitization. An authenticated API user could inject arbitrary email headers (e.g. Bcc, Reply-To) by embedding carriage return/line feed characters in these fields, enabling silent email forwarding, reply redirection, or sender spoofing. The fix adds input validation at the schema level to reject any of these fields containing \r or \n characters, consistent with the existing validation already applied to the contentId field. This vulnerability is fixed in 0.8.0.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-34975 Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supp… https://www.cve.org/CVERecord?id=CVE-2026-34975
Post summary
The text announces CVE‑2026‑34975 as a CRLF header injection issue in Plunk’s SESService, providing technical details but no PoC, exploit code, or evidence of active exploitation.
[CVE-2026-34975: HIGH] Cybersecurity alert: Plunk email platform fixed a CRLF header injection vulnerability in AWS SES integration (fixed in 0.8.0). Ensure your system is updated for protection.#cve,CVE-2026-34975,#cybersecurity https://cvefind.com/CVE-2026-34975
Post summary
Plunk email platform has fixed a CRLF header injection flaw in its AWS SES integration; users should update to version 0.8.0 to protect against the vulnerability.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | useplunk | plunk | - | - | - |