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CVE-2026-112257

Gimp: gimp: heap out-of-bounds read/write in psd thumbnail loader (load_resource_1033)

CVSS 3.1 7.8 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-112257

Published

A flaw was found in GIMP. The PSD thumbnail resource loader performs a BGR-to-RGB channel swap with a fixed 3-byte stride and does not verify that the JPEG thumbnail is RGB. A crafted grayscale PSD thumbnail can cause a heap out-of-bounds read and write in the plug-in process, leading to a crash and potentially arbitrary code execution when the victim browses or opens the file.

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Affected versions, risk and source history

Exploitation and risk

Source status

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cve-program · CVE-2026-112257

Published

Gimp: gimp: heap out-of-bounds read/write in psd thumbnail loader (load_resource_1033)

A flaw was found in GIMP. The PSD thumbnail resource loader performs a BGR-to-RGB channel swap with a fixed 3-byte stride and does not verify that the JPEG thumbnail is RGB. A crafted grayscale PSD thumbnail can cause a heap out-of-bounds read and write in the plug-in process, leading to a crash and potentially arbitrary code execution when the victim browses or opens the file.

Source published
19 Oct 2026 21:37:19 UTC
Source modified
11 Nov 2026 12:07:08 UTC
Saved here
11 Nov 2026 13:57:25 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

ChangeIntel

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Sources read 12 Nov 19:39 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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