PT-2026-136966

CVE-2026-121946

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Published

2026-11-04

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Updated

2026-11-04

Description by

CVSS 3.1
7.2
High
MetricsAV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
zbateson mail-mime-parser before 3.0.9 and 4.x before 4.0.6 contains a CRLF header injection vulnerability in message-building helpers that fail to strip CR and LF characters. Attackers supplying crafted MIME type, charset, encoding, micalg, or protocol values can inject extra header lines such as a forged Bcc into outgoing messages.
Exploitability
Fix
Researchers
Vendors
Affected products
Weakness enumeration
CWE-93: Improper Neutralization of CRLF Sequences (\'CRLF Injection\')
Related identifiers
CVE-2026-121946
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