Hi, The following vulnerability was published for nginx. CVE-2026-48142[0]: | NGINX Plus and NGINX Open Source have a vulnerability in the | ngx_http_charset_module module. When content is served or proxied | through a location block with both source_charset utf-8; and a | charset directive (for example, charset koi8-r;) configured, remote, | unauthenticated attackers can send requests (in conjunction with | conditions beyond their control) to cause a heap buffer over-read in | the NGINX worker process, leading to limited disclosure of memory or | a restart. Note: Software versions which have reached End of | Technical Support (EoTS) are not evaluated. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-48142 https://www.cve.org/CVERecord?id=CVE-2026-48142 [1] https://my.f5.com/manage/s/article/K000161585 [2] https://github.com/nginx/nginx/commit/60c4243eb8775d51662a01def8a7dad5d9fb34a7 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
We believe that the bug you reported is fixed in the latest version of
nginx, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 1140361@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Jan Mojžíš <janmojzis@debian.org> (supplier of updated nginx package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Wed, 24 Jun 2026 19:29:57 +0000
Source: nginx
Architecture: source
Version: 1.30.1-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Nginx Maintainers <pkg-nginx-maintainers@alioth-lists.debian.net>
Changed-By: Jan Mojžíš <janmojzis@debian.org>
Closes: 1124757 1140361 1140605
Changes:
nginx (1.30.1-6) unstable; urgency=medium
.
* d/p/fix-cache-line-size-for-loongarch64.patch add,
backport loongarch64 detection and set cache line size 64
(Closes: 1140605)
* d/control: add `Suggests logrotate` for nginx-common (Closes: 1124757)
* d/changelog: fix the 1.30.1-5 entry, which already closed bug #1140361
(Closes: 1140361)
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Git-Tag-Tagger: Jan Mojžíš <jan.mojzis@gmail.com>
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Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/7d5fb1ed6f5e5e0cca341e70b5a513fdedce714d Closes: #1140361 ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
We believe that the bug you reported is fixed in the latest version of
nginx, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 1140361@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Salvatore Bonaccorso <carnil@debian.org> (supplier of updated nginx package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 27 Jun 2026 22:33:06 +0200
Source: nginx
Architecture: source
Version: 1.26.3-3+deb13u7
Distribution: trixie-security
Urgency: high
Maintainer: Debian Nginx Maintainers <pkg-nginx-maintainers@alioth-lists.debian.net>
Changed-By: Salvatore Bonaccorso <carnil@debian.org>
Closes: 1140359 1140361
Changes:
nginx (1.26.3-3+deb13u7) trixie-security; urgency=high
.
* Non-maintainer upload by the Security Team.
* Upstream: limit header length for HTTP/2 and gRPC (CVE-2026-42055)
(Closes: #1140359)
* Charset: fixed another rare buffer overread in recode_from_utf8()
(CVE-2026-48142) (Closes: #1140361)
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We believe that the bug you reported is fixed in the latest version of
nginx, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 1140361@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Carlos Henrique Lima Melara <charlesmelara@riseup.net> (supplier of updated nginx package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Tue, 30 Jun 2026 22:05:01 -0300
Source: nginx
Architecture: source
Version: 1.22.1-9+deb12u9
Distribution: bookworm-security
Urgency: medium
Maintainer: Debian Nginx Maintainers <pkg-nginx-maintainers@alioth-lists.debian.net>
Changed-By: Carlos Henrique Lima Melara <charlesmelara@riseup.net>
Closes: 1140359 1140361
Changes:
nginx (1.22.1-9+deb12u9) bookworm-security; urgency=medium
.
* Non-maintainer upload by the LTS Team.
* debian/gbp.conf: set debian-branch to debian/bookworm.
* debian/patches: import upstream patches to fix vulnerabilities.
- CVE-2026-42055.patch: backport from upstream; (Closes: #1140359)
- CVE-2026-48142.patch: cherry-pick from upstream. (Closes: #1140361)
* debian/tests/abicheck: cherry-pick from debain/trixie, remove chown, add
warn when it fails and remove needs-root restriction.
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Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/37297a5094f0d6c560fb5a259f4d7bda543518dd------------------------------------------------------------------------ Import Debian changes 1.18.0-6.1+deb11u8 nginx (1.18.0-6.1+deb11u8) bullseye-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/gbp.conf: set debian-branch to debian/bullseye. * debian/patches: import upstream patches to fix vulnerabilities. - CVE-2026-42055.patch: backport from upstream; (Closes: #1140359) - CVE-2026-48142.patch: cherry-pick from upstream; (Closes: #1140361) - FIX-HTTP2bomb.patch: backport from upstream. (Closes: #1138794) . nginx (1.18.0-6.1+deb11u7) bullseye-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/patches/CVE-2026-9256.patch: cherry-pick from upstream. (Closes: #1137339) ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/37297a5094f0d6c560fb5a259f4d7bda543518dd------------------------------------------------------------------------ Import Debian changes 1.18.0-6.1+deb11u8 nginx (1.18.0-6.1+deb11u8) bullseye-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/gbp.conf: set debian-branch to debian/bullseye. * debian/patches: import upstream patches to fix vulnerabilities. - CVE-2026-42055.patch: backport from upstream; (Closes: #1140359) - CVE-2026-48142.patch: cherry-pick from upstream; (Closes: #1140361) - FIX-HTTP2bomb.patch: backport from upstream. (Closes: #1138794) . nginx (1.18.0-6.1+deb11u7) bullseye-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/patches/CVE-2026-9256.patch: cherry-pick from upstream. (Closes: #1137339) ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/2004a82149c5344b8b29d8a3c551c0a411ca8c27------------------------------------------------------------------------ Import Debian changes 1.26.3-3+deb13u7 nginx (1.26.3-3+deb13u7) trixie-security; urgency=high . * Non-maintainer upload by the Security Team. * Upstream: limit header length for HTTP/2 and gRPC (CVE-2026-42055) (Closes: #1140359) * Charset: fixed another rare buffer overread in recode_from_utf8() (CVE-2026-48142) (Closes: #1140361) ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/2004a82149c5344b8b29d8a3c551c0a411ca8c27------------------------------------------------------------------------ Import Debian changes 1.26.3-3+deb13u7 nginx (1.26.3-3+deb13u7) trixie-security; urgency=high . * Non-maintainer upload by the Security Team. * Upstream: limit header length for HTTP/2 and gRPC (CVE-2026-42055) (Closes: #1140359) * Charset: fixed another rare buffer overread in recode_from_utf8() (CVE-2026-48142) (Closes: #1140361) ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/c2d45bd8fe45473bd592403961e566c30fff5c30------------------------------------------------------------------------ Import Debian changes 1.22.1-9+deb12u9 nginx (1.22.1-9+deb12u9) bookworm-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/gbp.conf: set debian-branch to debian/bookworm. * debian/patches: import upstream patches to fix vulnerabilities. - CVE-2026-42055.patch: backport from upstream; (Closes: #1140359) - CVE-2026-48142.patch: cherry-pick from upstream. (Closes: #1140361) * debian/tests/abicheck: cherry-pick from debain/trixie, remove chown, add warn when it fails and remove needs-root restriction. ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361
Hello, Bug #1140361 in nginx reported by you has been fixed in the Git repository. You can see the commit message below and you can check the diff of the fix at: https://salsa.debian.org/nginx-team/nginx/-/commit/c2d45bd8fe45473bd592403961e566c30fff5c30------------------------------------------------------------------------ Import Debian changes 1.22.1-9+deb12u9 nginx (1.22.1-9+deb12u9) bookworm-security; urgency=medium . * Non-maintainer upload by the LTS Team. * debian/gbp.conf: set debian-branch to debian/bookworm. * debian/patches: import upstream patches to fix vulnerabilities. - CVE-2026-42055.patch: backport from upstream; (Closes: #1140359) - CVE-2026-48142.patch: cherry-pick from upstream. (Closes: #1140361) * debian/tests/abicheck: cherry-pick from debain/trixie, remove chown, add warn when it fails and remove needs-root restriction. ------------------------------------------------------------------------ (this message was generated automatically) -- Greetings https://bugs.debian.org/1140361