CLSA-2026-1771494614 python3: Fix of 3 CVEs

CVE-2025-15366: reject control characters in IMAP commands - CVE-2025-15367: reject control characters in POP3 commands - CVE-2026-1299: reject the incorrectly folded headers in "BytesGenerator"...

BIT-PYTHON-MIN-2026-1299 email BytesGenerator header injection due to unquoted newlines

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 foldin...

BIT-LIBPYTHON-2026-1299 email BytesGenerator header injection due to unquoted newlines

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 foldin...

PT-2026-6338

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 foldin...

PT-2026-6342

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 foldin...

CVE-2026-1299

A flaw was found in the email module in the Python standard library. When serializing an email message, the BytesGenerator class fails to properly quote newline characters for email headers. This issue is exploitable when the LiteralHeader class is used as it does not respect email folding rules,...

SUSE CVE-2026-1299

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 foldin...

CRLF Injection

Overview Affected versions of this package are vulnerable to CRLF Injection via the BytesGenerator class in the email module due to unquoted newlines when serializing an email message. An attacker could perform email spoofing, data exfiltration, or content manipulation by injecting malicious CRLF...

CVE-2026-1299

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 foldin...

AZL-75219 CVE-2026-1299 affecting package python3 for versions less than 3.9.19-18

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 foldin...

AZL-75234 CVE-2026-1299 affecting package python3 3.12.9-8

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 foldin...

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

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 foldin...

CVE-2026-1299

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 foldin...

Linux Distros Unpatched Vulnerability : CVE-2026-1299

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The email module, specifically the BytesGenerator class, didn't properly quote newlines for email headers when serializing an email message allowing for header...

PT-2026-4500

Name of the Vulnerable Software and Affected Versions Python email module affected versions not specified Description The BytesGenerator class within the email module did not correctly quote newlines for email headers during email message serialization. This flaw allows for header injection when ...