CVE Catalog

CVE-2026-46599

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.35%

28th percentile - higher than 28% of all known CVEs

Summary

The TIFF decoder does not limit the size of PackBits-compressed data. A maliciously crafted image can cause the decoder to decompress large amounts of data, even though the image is small in dimensions and encoded size.

Risk Assessment

An attacker could cause excessive memory or CPU usage, potentially leading to denial of service (DoS) in applications processing TIFF images.

Recommendation

Update the TIFF decoding library to a version that introduces a limit on PackBits data size (if available) or apply application-level restrictions.

Related vulnerabilities

Original NVD description (English source)

The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS