FKIE_CVE-2026-35444

Vulnerability from fkie_nvd - Published: 2026-04-06 22:16 - Updated: 2026-04-16 04:41
Severity ?
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
Summary
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.
References
security-advisories@github.comhttps://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7Vendor Advisory, Patch
Impacted products
Vendor Product Version
libsdl sdl_image *
To clipboard 

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      "value": "SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8."
    }
  ],
  "id": "CVE-2026-35444",
  "lastModified": "2026-04-16T04:41:25.240",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
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  "published": "2026-04-06T22:16:23.003",
  "references": [
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      "source": "security-advisories@github.com",
      "tags": [
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        "Patch"
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      "url": "https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7"
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  "vulnStatus": "Analyzed",
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          "value": "CWE-125"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.