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Vulnerabilities

Vulnerability · CVE-2026-46599

The TIFF decoder does not place a limit on the size of PackBits-compressed data.

Published May 29, 2026 · catalog updated Jul 22, 2026 · The TIFF decoder does

Check if you run it

No confirmed exploitation is on record for CVE-2026-46599. EPSS is 0.63%. Act only if a listed version of The TIFF decoder does is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The TIFF decoder does).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.63%
Remediation
Not established
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-46599

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-46599. EPSS is 0.63%. Act only if a listed version of The TIFF decoder does is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 29, 2026 · NIST NVD

    Detected

    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.

  2. Jul 22, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-46599

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-46599

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-46599

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.