What’s Vulnerable › Vulnerabilities

CVE-2026-102505: Imager versions before 1.037 for Perl overflow a heap buffer fetching float samples from a paletted image in i_gsampf_fp

• Severity: medium (CVSS 6.3 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: 2026-10-01 · updated 2026-10-08
• Weakness: CWE-131

Description

Imager versions before 1.037 for Perl overflow a heap buffer fetching float samples from a paletted image in i_gsampf_fp. For a paletted image, getsamples() with type "float" allocates a buffer of one sample per pixel and fetches every requested channel of each pixel into it. Requesting more than one channel writes past its end. An attacker-supplied image controls the overflowing bytes through its palette.

Affected products

• TONYC Imager: before 1.037 — fixed in 1.037

How to fix

Upgrade to a fixed version: TONYC Imager 1.037. Check the vendor advisory for mitigations.

References

• https://github.com/tonycoz/imager/commit/aae49c6be065aa467e834105c816359394a634db.patch
• https://github.com/tonycoz/imager/security/advisories/GHSA-4rx6-cgv3-fmxp
• https://metacpan.org/release/TONYC/Imager-1.037/changes
• http://www.openwall.com/lists/oss-security/2026/10/01/10

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