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CVE-2026-12912 is a heap-based buffer overflow in libtiff's PixarLog codec decoding path. The flaw is triggered when a PixarLog-compressed TIFF image is decoded using the PIXARLOGDATAFMT_8BITABGR output format with a specific stride value. Malformed image data can cause an out-of-bounds write to heap memory during image decoding.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
24 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity heap-based buffer overflow in bundled libtiff, triggerable through a crafted PixarLog-compressed TIFF image. The referenced Fedora 44 tkimg update upgrades bundled libtiff to version 4.7.2.
A heap-based buffer overflow in libtiff, affecting tkimg, triggered by a crafted TIFF image using PixarLog compression.
A heap-based buffer-overflow vulnerability in tkimg's libtiff component that can be triggered by a crafted TIFF image using PixarLog compression.
A high-impact local vulnerability affecting TencentOS Server 3, including its libtiff package, that requires low privileges and user interaction and can compromise confidentiality, integrity, and availability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.