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CVE-2026-27219 is an Out-of-bounds Read vulnerability affecting Adobe Substance 3D Painter versions 11.1.2 and earlier. The flaw resides in how the application handles malformed or maliciously crafted files during the parsing process. When a user opens a specially crafted file, the application fails to properly validate read operations against allocated memory boundaries. This allows an attacker to force the software to read data from memory locations beyond the intended buffer (CWE-125). Exploitation results in the exposure of sensitive information that may reside in adjacent memory spaces, such as API keys, personal data, or other confidential details. The attack vector is local and requires user interaction, meaning a victim must be tricked into opening the malicious file. According to the CVSS:3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N), the vulnerability has a high impact on confidentiality but does not affect integrity or availability, leading to a base score of 5.5 (Medium) .
DailyCVE Form:
Platform: Substance 3D Painter
Version: 11.1.2 and earlier
Vulnerability : Out-of-bounds Read
Severity: Medium (5.5)
date: March 10, 2026
Prediction: Patched March 10, 2026
What Undercode Say:
Analytics
The vulnerability is triggered when the application parses a malicious .spp or associated asset file. To simulate the condition, one can monitor memory access patterns using a debugger.
Example: Monitor process memory regions for Painter (Windows via PowerShell) Get-Process -Name "Painter" | Select-Object -ExpandProperty Modules | Format-Table FileName, ModuleMemorySize Check current version on macOS defaults read /Applications/Adobe\ Substance\ 3D\ Painter.app/Contents/Info.plist CFBundleShortVersionString
Exploit
An attacker crafts a file that causes the application to read past the bounds of an array. This can expose sensitive data such as stack canaries or heap metadata. Below is a conceptual code snippet demonstrating the flaw:
// Vulnerable pseudo-code example
void read_asset_data(char user_input, int length) {
char buffer[bash];
memcpy(buffer, user_input, length); // No bounds check if length > 256
for (int i = 0; i < length; i++) {
// Out-of-bounds read if length > 256
sensitive_data += buffer[bash];
}
}
Protection from this CVE
- Update to Substance 3D Painter version 11.2 or later (fixed in March 2026 Patch Tuesday) .
- Avoid opening .spp or asset files from untrusted or unknown sources.
- Implement endpoint detection rules to flag applications performing anomalous memory reads.
Impact
Successful exploitation leads to information disclosure, potentially exposing sensitive in-memory data that could facilitate further attacks or compromise intellectual property.
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Sources:
Reported By: nvd.nist.gov
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