High RHSA-2026:83550 1 CVE

Red Hat Security Advisory: libtiff security update

Published Oct 16, 2026 · Updated Oct 16, 2026

Ecosystem: Red Hat

Fixed packages 5

Release	Package	Fixed in
Red Hat · RHEL 7 ELS rhel_els:7	libtiff	0:4.0.3-35.el7_9.3
Red Hat · RHEL 7 ELS rhel_els:7	libtiff-debuginfo	0:4.0.3-35.el7_9.3
Red Hat · RHEL 7 ELS rhel_els:7	libtiff-devel	0:4.0.3-35.el7_9.3
Red Hat · RHEL 7 ELS rhel_els:7	libtiff-static	0:4.0.3-35.el7_9.3
Red Hat · RHEL 7 ELS rhel_els:7	libtiff-tools	0:4.0.3-35.el7_9.3

Vulnerabilities 1

High 7.3

CVE-2026-12912

Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specif…

Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 6 Linux Debian Ubuntu Azure Linux

Jun 29, 2026

References

article
https://access.redhat.com/security/updates/classification/#important
report
https://bugzilla.redhat.com/show_bug.cgi?id=2492871
advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_83550.json
report
https://access.redhat.com/security/cve/CVE-2026-12912
advisory
https://www.cve.org/CVERecord?id=CVE-2026-12912
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-12912
article
https://gitlab.com/libtiff/libtiff/-/merge_requests/873
article
https://gitlab.com/libtiff/libtiff/-/work_items/824