What’s Vulnerable › Vulnerabilities

CVE-2026-112202: Imager::File::GIF versions before 1.006 for Perl allow out-of-bounds reads when consolidating GIF images

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-30
• Weakness: CWE-125

Description

Imager::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.

Affected products

• Imager: before 1.040 — fixed in 1.040
• Imager-File-GIF: before 1.006 — fixed in 1.006

How to fix

Upgrade to a fixed version: Imager 1.040; Imager-File-GIF 1.006. Check the vendor advisory for mitigations.

References

• https://github.com/tonycoz/imager/commit/dec96f12b3d8a7fd94e86264953a5e4919dd6036.patch
• https://github.com/tonycoz/imager/security/advisories/GHSA-v4hp-5h6w-9897
• https://metacpan.org/release/TONYC/Imager-1.040/changes
• https://metacpan.org/release/TONYC/Imager-File-GIF-1.006/changes
• http://www.openwall.com/lists/oss-security/2026/10/21/1

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