Integer Overflow in libtiff's rgb2ycbcr Utility Affecting Image Processing
CVE-2026-52492

7.8HIGH

Key Information:

Vendor

libtiff

Status
libtiff
Vendor
CVE Published:
24 August 2026

What is CVE-2026-52492?

A vulnerability in the libtiff library's rgb2ycbcr utility can be exploited due to an integer overflow in the cvtRaster() function. This flaw occurs when calculating the strip buffer sizes, which can lead to undersized heap allocations. When a specially crafted TIFF image is processed, this can cause a heap-based buffer overflow, potentially allowing attackers to execute arbitrary code or disrupt the application’s behavior.

References

https://gitlab.com/libtiff/libtiff/-/commit/94affc5cf5411...
https://gist.github.com/okyfh/fbc5a37cade358361d80f6a4985...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.