# CVE-2026-8669: libimager-perl: Imager versions through 1.030 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files

CVE-2026-8669 is fixed in libimager-perl on 1 platform by DEBIAN-CVE-2026-8669 (version 1.031+dfsg-1), released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-8669
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0032
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 15, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libimager-perl Debian 14 | 1.031+dfsg-1 | [DEBIAN-CVE-2026-8669](https://patchblox.com/security/data/fix/linux/debian-cve-2026-8669.md) | May 27, 2026 |

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