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Medium

Email header injection due to unquoted newlines

Type: advisorySources: OSV

There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-6923
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 03:13 UTC · Revision 1

Source evidence

Email header injection due to unquoted newlines

core-osv · Original source

Published 1 Aug 2024, 13:40 UTC

There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.

osv:CVE-2024-6923
Complete source record
{
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  "url": "https://osv.dev/vulnerability/CVE-2024-6923",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Email header injection due to unquoted newlines",
    "summary": "There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.",
    "evidence": "osv:CVE-2024-6923",
    "products": [],
    "severity": "medium",
    "structured": {
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      "aliases": [
        "BIT-libpython-2024-6923",
        "BIT-python-2024-6923",
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