Debian released updates for libnfs that patch CVE-2026-53689, which stems from unchecked string lengths causing integer overflows. The tiff library update addresses CVE-2026-12912, allowing attackers to crash systems or run arbitrary code when processing malformed images. Users must upgrade roundcube to version 1.6.17+dfsg-0+deb13u1 to patch six vulnerabilities that enable cross-site scripting, SSRF bypasses, and complete account takeovers.

ELA-1775-1 libnfs security update (by )
[DSA 6392-1] tiff security update
[DSA 6391-1] roundcube security update

ELA-1775-1 libnfs security update (by )

Package : libnfs

Version : 1.11.0-2+deb9u1 (stretch), 3.0.0-2+deb10u1 (buster)

Related CVEs :
CVE-2026-53689

An issue has been found in libnfs, am NFS client library.
The issue is related to to a missing validation of a string size that
might lead to an integer overflow.

ELA-1775-1 libnfs security update (by )

[SECURITY] [DSA 6392-1] tiff security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-6392-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
July 19, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : tiff
CVE ID : CVE-2026-12912
Debian Bug : 1141320

A flaw was discovered in tiff, a Tag Image File Format library, which
may result in denial of service or the execution of arbitrary code if
malformed image files are processed.

For the stable distribution (trixie), this problem has been fixed in
version 4.7.0-3+deb13u3.

We recommend that you upgrade your tiff packages.

For the detailed security status of tiff please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/tiff

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/

[SECURITY] [DSA 6391-1] roundcube security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-6391-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
July 19, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : roundcube
CVE ID : CVE-2026-54432 CVE-2026-54433 CVE-2026-62641 CVE-2026-62642
CVE-2026-62643 CVE-2026-62644
Debian Bug : 1141495

Multiple vulnerabilities were discovered in roundcube, a skinnable AJAX
based webmail solution for IMAP servers, which could result in account
takeover, cross-site scripting, SSRF bypass, information disclosure or
denial of service.

For the stable distribution (trixie), these problems have been fixed in
version 1.6.17+dfsg-0+deb13u1.

We recommend that you upgrade your roundcube packages.

For the detailed security status of roundcube please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/roundcube

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/