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.
CVSS Score
7.1
EPSS Score
0.003
Published
2026-07-27
A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.
CVSS Score
7.8
EPSS Score
0.003
Published
2026-07-27
A flaw was found in GIMP's PSD parser. An integer overflow in read_RLE_channel() can cause an undersized heap allocation for the RLE row-length table, after which subsequent per-row writes corrupt heap memory. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution.
CVSS Score
7.3
EPSS Score
0.003
Published
2026-07-07
A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pnmscanner_gettoken() function writes a null terminator one byte past the end of a stack-allocated buffer due to an off-by-one error in the loop boundary check. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution.
CVSS Score
7.3
EPSS Score
0.003
Published
2026-07-06
MacOS version of GIMP bundles a Python interpreter that inherits the Transparency, Consent, and Control (TCC) permissions
granted by the user to the main application bundle. An attacker with local user access can
invoke this interpreter with arbitrary commands or scripts, leveraging the
application's previously granted TCC permissions to access user's files in privacy-protected folders without triggering user prompts. Accessing other resources beyond previously granted TCC permissions will prompt the user for approval in the name of GIMP, potentially disguising attacker's malicious intent.
This issue has been fixed in 3.1.4.2 version of GIMP.
CVSS Score
4.8
EPSS Score
0.003
Published
2025-08-11
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