Home / mailings [SECURITY] [DSA 6161-1] multipart security update
Posted on 12 March 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6161-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
March 12, 2026 https://www.debian.org/security/faq
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Package : multipart
CVE ID : CVE-2026-28356
It was discovered that the parse_options_header() function of multipart,
a Python multipart/form-data parser was susceptible to denial of service
via malformed request headers or multipart/form-data streams.
For the stable distribution (trixie), this problem has been fixed in
version 1.2.1-2+deb13u1.
We recommend that you upgrade your multipart packages.
For the detailed security status of multipart please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/multipart
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
