Home / mailings [SECURITY] [DSA 6145-1] nova security update
Posted on 19 February 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6145-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 19, 2026 https://www.debian.org/security/faq
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Package : nova
CVE ID : CVE-2026-24708
Debian Bug : 1128294
Dan Smith discovered that nova, a cloud computing fabric controller,
calls qemu-img without format restrictions for resize, which may result
in unsafe image resize operations that could destroy data on the host
system. Only compute nodes using the Flat image backend are affected.
For the oldstable distribution (bookworm), this problem has been fixed
in version 2:26.2.2-1~deb12u4.
For the stable distribution (trixie), this problem has been fixed in
version 2:31.0.0-6+deb13u2.
We recommend that you upgrade your nova packages.
For the detailed security status of nova please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/nova
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
