CVE-2026-8669
mediumpriority · track · 0EPSS 0.003 · 25 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://metacpan.org/pod/ImagerPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-8669cnnvd
- https://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patchenisa_euvd
- https://metacpan.org/release/TONYC/Imager-1.031/source/Changesenisa_euvd
- http://www.openwall.com/lists/oss-security/2026/05/15/17nvd
- https://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patchnvd
- https://metacpan.org/release/TONYC/Imager-1.031/source/Changesnvd
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