danoli3 FreeImage up to 3.19.21 PBM RLE decoder PluginIFF.cpp heap-based overflow

Summaryinfo

A vulnerability was found in danoli3 FreeImage up to 3.19.21. It has been declared as critical. This affects an unknown function of the file PluginIFF.cpp of the component PBM RLE decoder. The manipulation results in heap-based overflow. This vulnerability was named CVE-2026-118752. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in danoli3 FreeImage up to 3.19.21. Affected is some unknown processing of the file PluginIFF.cpp of the component PBM RLE decoder. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

FreeImage (danoli3 fork) before 3.19.22 contains a heap buffer overflow vulnerability in the PBM RLE decoder of PluginIFF.cpp that lacks bounds checks on ByteRun1 runs. Attackers can supply a crafted IFF/LBM PBM file with runs straddling scanline ends to write up to 127 controlled bytes past the heap-allocated bitmap.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-118752 since 10/28/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 3.19.22 eliminates this vulnerability.

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Productinfo

Vendor

• danoli3

Name

• FreeImage

Version

• 3.19.0
• 3.19.1
• 3.19.2
• 3.19.3
• 3.19.4
• 3.19.5
• 3.19.6
• 3.19.7
• 3.19.8
• 3.19.9
• 3.19.10
• 3.19.11
• 3.19.12
• 3.19.13
• 3.19.14
• 3.19.15
• 3.19.16
• 3.19.17
• 3.19.18
• 3.19.19
• 3.19.20
• 3.19.21

Website

• Product: https://github.com/danoli3/FreeImage/

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