CVE-2026-66759High· 7.1▾ MidnightPoC availableA flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafte…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 39.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.
gimp >= 2.99.14 < *gimp (all versions)gimpgimpgimp:2.8/gimpRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
To mitigate this vulnerability, do not open ICNS files from untrusted sources with GIMP.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-66758High· 7.8A flaw was found in the file-fits plugin in GIMP
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CVE-2026-82328Medium· 6.1Gimp: heap out-of-bounds read in ico loader via unvalidated used_clrs palette count
CVE-2026-82330Medium· 6.1Gimp: heap out-of-bounds read in pvr vq (compressed) decoder due to missing bounds check
CVE-2026-96545Medium· 4.4An out-of-bounds heap read flaw was found in GIMP's TIM image loader
CVE-2026-96546Low· 2.5A one-byte out-of-bounds heap read flaw was found in GIMP's uncompressed DDS image loader