CRLF Injection Affecting zbateson/mail-mime-parser package, versions <3.0.6>=4.0.0, <4.0.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-ZBATESONMAILMIMEPARSER-20186936
- published28 Sept 2026
- disclosed24 Sept 2026
- creditUnknown
Introduced: 24 Sep 2026
NewCVE-2026-61815 (opens in a new tab)How to fix?
Upgrade zbateson/mail-mime-parser to version 3.0.6, 4.0.2 or higher.
Overview
Affected versions of this package are vulnerable to CRLF Injection via the getFilename process. An attacker can inject arbitrary headers into MIME messages by supplying a crafted attachment filename containing carriage return and line feed characters, which are not properly sanitized before being included in email headers. This can allow exfiltration of message contents or manipulation of email delivery.