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Vulnerability record · CVE-2026-46599 · published 29 May 2026

CVE-2026-46599: Allocation without limits vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.63% · top 51.9% CWE-770 · Allocation without limits Deferred
7.5CVSS 3.1 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

Source: NIST National Vulnerability Database (record CVE-2026-46599), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.