CVE-2026-1299 - email BytesGenerator header injection due to unquoted newlines

CVE ID : CVE-2026-1299
Published : Jan. 23, 2026, 4:27 p.m. | 41 minutes ago
Description : The email module, specifically the "BytesGenerator" class, didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized. This is only applicable if using "LiteralHeader" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in "BytesGenerator".
Severity: 6.0 | MEDIUM
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from Latest Vulnerabilities https://ift.tt/yQUbLwR

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