CVE-2026-8669: Tonyc Imager

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Imager versions through 1.030 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files. Imager::File::GIF's i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF's global screen width 'SWidth' and reuses it across every image in the file. The page-match branch validates Image.Width + Image.Left > SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.

Affected products

• Tonyc Imager: up to and including 1.030

Published 2026-05-15. Last modified 2026-06-17.