PT-2026-6342 · Bitnami · Python

Published 2026-02-03 · Updated 2026-02-03

OSV

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".

Related Identifiers

BIT-PYTHON-2026-1299

Affected Products

Python

References · 12

• https://cve.org/CVERecord?id=CVE-2024-6923 · Security Note
• https://osv.dev/vulnerability/BIT-python-2026-1299 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1299 · Security Note
• https://github.com/python/cpython/commit/842ce19a0c0b58d61591e8f6a708c38db1fb94e4 · Note
• https://github.com/python/cpython/commit/7877fe424415bc4a13045e62a90a7277413d8cb9 · Note
• https://github.com/python/cpython/commit/8cdf6204f4ae821f32993f8fc6bad0d318f95f36 · Note
• https://github.com/python/cpython/commit/0a925ab591c45d6638f37b5e57796f36fa0e56d8 · Note
• https://github.com/python/cpython/commit/e417f05ad77a4c30ddc07f99e90fc0cef43e831a · Note
• https://github.com/python/cpython/issues/144125 · Note
• https://github.com/python/cpython/pull/144126 · Note
• https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413 · Note
• https://mail.python.org/archives/list/[e-mail]/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT · Note