Imager::File::GIF versions before 1.006 for Perl allow out-of-bounds reads when consolidating GIF images

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-112202
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-20 23:17:01 UTC
Updated2026-10-21 03:17:19 UTC
DescriptionImager::File::GIF versions before 1.006 for Perl allow out-of-bounds reads when consolidating GIF images. With `gif_consolidate => 1`, palette indices from the image are used without checking the colour table's bounds. The i_readgif_low routine reads beyond the heap allocation and copies the bytes into output pixels. The default GIF reader is not affected. The same code ships bundled in the Imager distribution. An attacker supplying a crafted GIF can disclose adjacent heap memory through the decoded output and may crash the process.

Risk And Classification

Problem Types: CWE-125 | CWE-125 CWE-125 Out-of-bounds Read

References

ReferenceSourceLinkTags
github.com/tonycoz/imager/commit/dec96f12b3d8a7fd94e86264953a5e4919dd603... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
metacpan.org/release/TONYC/Imager-File-GIF-1.006/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
www.openwall.com/lists/oss-security/2026/10/21/1 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
metacpan.org/release/TONYC/Imager-1.040/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
github.com/tonycoz/imager/security/advisories/GHSA-v4hp-5h6w-9897 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: kumar-Prakash07 (en)

Additional Advisory Data

Solutions

CNA: Upgrade to Imager-File-GIF 1.006 or later, or to Imager 1.040 or later if the bundled copy is in use.

Workarounds

CNA: Disable the gif_consolidate read option when processing untrusted GIF images.

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