Updated Debian 12: 12.15 released
July 11th, 2026
The Debian project is pleased to announce the fifteenth and final update of its
oldstable distribution Debian 12 (codename bookworm
).
This point release mainly adds corrections for security issues,
along with a few adjustments for serious problems. Security advisories
have already been published separately and are referenced where available.
Please note that the point release does not constitute a new version of Debian
12 but only updates some of the packages included. There is
no need to throw away old bookworm
media. After installation,
packages can be upgraded to the current versions using an up-to-date Debian
mirror.
Those who frequently install updates from security.debian.org won't have to update many packages, and most such updates are included in the point release.
New installation images will be available soon at the regular locations.
Upgrading an existing installation to this revision can be achieved by pointing the package management system at one of Debian's many HTTP mirrors. A comprehensive list of mirrors is available at:
Noteworthy updates
fwupd
and Secure Boot CA expiry
fwupd
has been updated to upstream version 2.0.20, which has the ability
to update the Secure Boot certificate authority (CA), Key Exchange Key (KEK)
and revocation (DBX) databases.
The 2013 UEFI Secure Boot CA installed by default on most PCs and
used to sign bootloaders has now expired. Future updates to shim-signed
could therefore lead to systems being unable to boot with Secure Boot enabled.
Users are strongly advised to apply CA
, KEK
and DBX
updates
from their system OEM in line with the following guidance:
geoip-database
reverted
For licensing reasons geoip-database
has been reverted to a version
dated approximately December 2019. As a result, applications using this database
might use out-of-date allocation information.
More recent versions of geoip-database
(GeoLite)
are not compatible with the Debian Free Software Guidelines and cannot be
distributed.
Consumers of this data are strongly encouraged to obtain a GeoLite license
directly and cease reliance on the geoip-database
package.
End of Debian support for bookworm
This update marks the end of Debian Release Team, Debian Security Team
and Debian Backports support for version 12. Ongoing support for some
architectures will be provided by the Debian Long Term Support team supported
by Freexian. Users are advised to upgrade systems to Debian 13 trixie
.
Miscellaneous Bugfixes
This oldstable update adds a few important corrections to the following packages:
| Package | Reason |
|---|---|
| 7zip | New upstream stable release; fix buffer overflow issues [CVE-2026-48092 CVE-2026-48095]; fix memory disclosure issue [CVE-2026-48101]; fix out-of-bounds read issues [CVE-2026-48102 CVE-2026-48103 CVE-2026-48111 CVE-2026-48112]; fix uninitialised memory read issue [CVE-2026-48104] |
| apache2 | Fix HTTP/2 request DoS and file handle exhaustion [CVE-2026-49975 CVE-2026-48913]; fix proxy, DAV, LDAP, SSL, XML and header memory/crash issues [CVE-2026-29167 CVE-2026-34355 CVE-2026-34356 CVE-2026-42535 CVE-2026-42536 CVE-2026-43951 CVE-2026-44185]; fix proxy FTP directory listing XSS and backend loop [CVE-2026-29170 CVE-2026-44186]; restrict htaccess expression file access [CVE-2026-44119]; fix regex parsing underflow [CVE-2026-44631]; correct SSI, file-cache, WebDAV DELETE and proxy health-check handling; update documentation and tests |
| appstream | Rebuild with updated libxmlb |
| base-files | Update for the point release |
| beets | Fix XSS vulnerability [CVE-2026-42052]; fix build-time test failures |
| calibre | Fix various potential security issues; read resources only from book contents [CVE-2026-33206]; keep extracted files within container dir [CVE-2026-30853]; prevent reading background images from outside the config dir [CVE-2026-33205] |
| cdebootstrap | Rebuild with updated xz-utils |
| chrony | Ensure if-up/down hook scripts exit successfully |
| cloud-init | Fix OpenStack bond initialisation |
| composer | Fix support for new GitHub token format [CVE-2026-45793] |
| curl | Fix cache poisoning issue [CVE-2025-10148]; fix data leak issues [CVE-2025-14524 CVE-2026-3783]; fix incorrect connection re-use issues [CVE-2025-14819 CVE-2026-3784 CVE-2026-5773 CVE-2026-7168] |
| dar | Rebuild with updated libgcrypt20 |
| dcmtk | Fix NULL pointer dereference issues [CVE-2022-4981 CVE-2025-14841]; fix memory corruption issues [CVE-2025-2357 CVE-2025-9732 CVE-2025-14607]; fix command injection issue [CVE-2026-5663]; fix buffer overflow issues [CVE-2026-10194 CVE-2026-12805] |
| debian-installer | Bump linux ABI 6.1.0-50; rebuild for point release |
| debian-installer-netboot-images | Rebuild from proposed updates |
| debian-security-support | Prepare support limitations ahead of transition to LTS |
| delve | Fix failure to build on 4th generation EYPC processors |
| dhcpcd5 | Fix NULL pointer dereference issue [CVE-2025-70102]; fix out-of-bounds write issue [CVE-2026-56114] |
| firewalld | Fix DBUS policy checking [CVE-2026-4948] |
| fwupd | Rebuild with updated libjcat, libxmlb; add support for updating DBX and KEK stores; rebuild in a clean environment |
| geoip-database | Revert to a DFSG-compatible version |
| ghdl | Rebuild with updated gcc-12 |
| giflib | Fix memory corruption issues [CVE-2026-23868 CVE-2026-26740] |
| gnome-firmware | Rebuild with updated libxmlb; backport patch for libfwupd3 compatibility |
| gnome-software | Rebuild with updated libxmlb; backport patch for libfwupd3 compatibility |
| graphite2 | Fix out-of-bounds write [CVE-2026-50593] |
| gss | Fix build failures caused by an expired Kerberos ticket; avoid krb5context self-tests with timebomb |
| horizon | Fix escaping of special characters in project |
| ironic | Fix file disclosure via image sources [CVE-2025-44021]; fix console command injection [CVE-2026-42510]; fix Swift token disclosure [CVE-2026-42997]; fix unsafe template execution [CVE-2026-44916] |
| keystone | Fix behaviour of user_enabled_invert [CVE-2026-40683]; prevent unauthorized EC2 credential creation and deletion [CVE-2026-33551] |
| libapache-session-browseable-perl | Improve entropy of generated session IDs |
| libbytes-random-secure-perl | Fix incorrect usage of seed in PRNG [CVE-2026-11625] |
| libcaca | Prevent undefined behaviour in overflow check [CVE-2026-42046] |
| libcrypt-pbkdf2-perl | Change default hash algorithm to HMAC-SHA256 and default iterations to 600,000 [CVE-2026-9641]; generate salts using Crypt::URandom [CVE-2026-9638]; use a constant-time comparison in `validate` to avoid timing attacks [CVE-2017-20240] |
| libhtml-gumbo-perl | Fix uninitialized memory access [CVE-2025-15646] |
| libhtml-parser-perl | Fix heap-use-after-free in _decode_entities [CVE-2026-8829] |
| libjcat | Add support for ed25519 types and SHA512 hashes |
| libnet-cidr-lite-perl | Fix IP/CIDR parser validation: reject non-ASCII digits and trailing newlines [CVE-2026-55190]; reject zero-padded CIDR masks [CVE-2026-45191] |
| libreoffice | Gracefully handle failure in graphite2 |
| libvncserver | Fix buffer overflow and out-of-bounds write [CVE-2026-44988 CVE-2026-50538] |
| libxml-libxml-perl | Fix out-of-bounds read [CVE-2026-8177] |
| libxml2 | Fix catalogue recursion and duplicate-catalog handling [CVE-2025-8732 CVE-2026-0990 CVE-2026-0992]; limit RelaxNG include recursion [CVE-2026-0989]; fix xmllint shell memory leak [CVE-2026-1757]; correct schematron regression-test outputs [CVE-2025-49794 CVE-2025-49796]; fix XML writer and schematron memory leaks; mitigate RelaxNG validation use-after-free; update catalogue and RelaxNG regression tests |
| libxmlb | Add support for zstd decompression; fix XMLb store/truncation validation; correct query binding/index handling; fix XML export and empty text() handling |
| linuxcnc | Sanitize module names |
| mariadb | New upstream stable release; fix code execution issues [CVE-2025-13699 CVE-2026-44168 CVE-2026-48163 CVE-2026-48165 CVE-2026-49261]; fix denial of service issues [CVE-2026-21968 CVE-2026-34303]; fix logging bypass issue [CVE-2026-3494]; fix path traversal issue [CVE-2026-44171]; fix SQL injection issue [CVE-2026-44172]; fix incomplete privilege check issue [CVE-2026-44173]; fix Illegal mix of collationserror; fix Mroonga hangs on invalid index flag; fix crash in information_schema.table_constraints |
| mesa | Fix WebGPU/SPIR-V allocation handling [CVE-2026-40393] |
| modsecurity | Prevent denial of service in hexDecode handling [CVE-2026-30923]; prevent denial of service in SSN/CPF/SVNR verification [CVE-2026-42268] |
| mxml | Fix out-of-bounds read [CVE-2026-5037] |
| node-flatted | Fix prototype pollution issue [CVE-2026-33228] |
| node-jschardet | Fix build link references |
| node-regexpp | Add missing link to undici-types |
| ojalgo | Reduce frequency of built-time test failures |
| openslide | Fix possible code execution issue [CVE-2026-48977] |
| p7zip | New upstream stable release; fix buffer overflow issues [CVE-2026-48092 CVE-2026-48095]; fix memory disclosure issue [CVE-2026-48101]; fix out-of-bounds read issues [CVE-2026-48102 CVE-2026-48103 CVE-2026-48111 CVE-2026-48112]; fix uninitialised memory read issue [CVE-2026-48104] |
| php-guzzlehttp-psr7 | Fix Host authority validation [CVE-2026-48998]; reject control characters in URI hosts [CVE-2026-49214]; harden ServerRequest globals handling; normalise global header values; encode literal plus signs in query helpers |
| phpunit | Fix unsafe deserialization in PHPT code coverage handling [CVE-2026-24765] |
| plasma-discover | Backport patch for libfwupd3 compatibility |
| prometheus | Fix date-sensitive build-time test |
| protobuf | Fix parser recursion limits [CVE-2024-7254 CVE-2025-4565 CVE-2026-0994 CVE-2026-6409] |
| pydantic | Fix denial of service in email verification [CVE-2024-3772] |
| pymatgen | Fix denial of service in GaussianInput.from_string [CVE-2022-42964] |
| python-ase | Disable unreliable built-time test |
| python-django | Update test suite following changes in python3.13 |
| python-filelock | Fix symlink vulnerabilies [CVE-2025-68146 CVE-2026-22701] |
| python-markdown | Fix parsing of bogus HTML markup [CVE-2025-69534] |
| python-pyramid | Fix information disclosure issue [CVE-2023-40587] |
| python-xmltodict | Fix XML injection issue [CVE-2025-9375] |
| python3.11 | Prevent incorrect tar archive handling [CVE-2025-13462]; ensure bytecode-only imports use normal security checks [CVE-2026-2297]; reject unsafe cookie values [CVE-2026-3644]; prevent XML parser crashes [CVE-2026-4224]; prevent browser command injection [CVE-2026-4519]; prevent bz2/lzma decompressor memory corruption [CVE-2026-6100]; restore XML autopkgtests |
| qemu | Rebuild with updated gnutls28 |
| rhino | Fix denial of service issue [CVE-2025-66453] |
| rlottie | Fix out-of-bounds read issue [CVE-2026-10305]; fix denial of service issues [CVE-2026-47319 CVE-2026-47320] |
| rsync | Reject excessively long HTTP proxy response lines [CVE-2026-45232] |
| ruby-css-parser | Fix validation of HTTPS certificates for remote CSS [CVE-2026-44312] |
| rust-time | Fix denial of service [CVE-2026-25727] |
| science.js | Fix build time race condition |
| sentry-python | Fix subprocess environment sanitisation [CVE-2024-40647] |
| shim | New upstream release; build with default gcc; set SBAT revocation level to 2025021800 |
| shim-helpers-amd64-signed | Update to shim 16.1-2~deb12u1 |
| shim-helpers-arm64-signed | Update to shim 16.1-2~deb12u1 |
| shim-helpers-i386-signed | Update to shim 16.1-2~deb12u1 |
| shim-signed | Ensure Secure Boot compatibility with 2023 Microsoft UEFI CA; check for likely boot issues before installation; combine and verify multiple shim signatures; update signed shim binaries |
| sqlite-utils | Add dependency on python3-click-default-group |
| sshfs-fuse | Add contain_symlinks option to prevent symlink escape attacks [CVE-2026-47187]; reject hostname option injection via bracketed mount source [CVE-2026-48711] |
| sylpheed | Fix link checking [CVE-2021-37746] |
| user-mode-linux | Rebuild with updated linux |
| vitrage | Fix remote code execution vulnerability [CVE-2026-28370] |
| wireless-regdb | New upstream stable release; update regulatory information for several countries |
| xz-utils | Fix buffer overflow issue [CVE-2026-34743] |
Security Updates
This revision adds the following security updates to the oldstable release. The Security Team has already released an advisory for each of these updates:
Removed packages
The following packages were removed due to circumstances beyond our control:
| Package | Reason |
|---|---|
| smb4k | Unable to continue security support |
Debian Installer
The installer has been updated to include the fixes incorporated into oldstable by the point release.
URLs
The complete lists of packages that have changed with this revision:
The current oldstable distribution:
Proposed updates to the oldstable distribution:
oldstable distribution information (release notes, errata etc.):
Security announcements and information:
About Debian
The Debian Project is an association of Free Software developers who volunteer their time and effort in order to produce the completely free operating system Debian.
Contact Information
For further information, please visit the Debian web pages at https://www.debian.org/, send mail to <press@debian.org>, or contact the stable release team at <debian-release@lists.debian.org>.