VulnerabilityAnalyzed

CVE-2026-8454

Imager::File::GIF versions through 1.002 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files.

MEDIUM 5.3EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

Description

Imager::File::GIF versions through 1.002 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 3.1: 5.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS: 0.19% probability · 9th percentile
CISA KEV: Not listed
Weakness: CWE-787
Affected: tonyc/imager\
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

References

https://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patchPatch
https://metacpan.org/release/TONYC/Imager-File-GIF-1.003/source/ChangesRelease Notes
http://www.openwall.com/lists/oss-security/2026/05/15/15Mailing List, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.