CVE-2026-12912
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th
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 specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).
| CWE | CWE-122 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Jun 29, 2026 |
| Last Updated | Aug 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support
All versions affected Red Hat / Red Hat Hardened Images
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:34890 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:41892 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:42668 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:47183 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:47184 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:49671 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:50774 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:54638 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-12912 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2492871 gitlab.com: https://gitlab.com/libtiff/libtiff/-/merge_requests/873 gitlab.com: https://gitlab.com/libtiff/libtiff/-/work_items/824 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12912.json
Credits
Red Hat would like to thank Ariel Schön for reporting this issue.