Memory Leak Affecting cimg package, versions <4.0.4+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-CIMG-18279803
- published24 Jul 2026
- disclosed21 Jul 2026
Introduced: 21 Jul 2026
CVE-2026-47667 (opens in a new tab)How to fix?
Upgrade Debian:14 cimg to version 4.0.4+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cimg package and not the cimg package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
CImg Library is a C++ library for image processing. Prior to version 4.0.0 in _load_analyze(), the header_size field is read as an unsigned int from the first 4 bytes of an Analyze/NIfTI file and passed directly to new unsigned char[header_size] without being bounded against the actual file size. A value up to ~4 GB is accepted. If the subsequent fread returns short as it will for any malformed file), the function throws a CImgIOException and the allocated buffer is never freed. A 6-byte crafted file is sufficient to trigger an allocation of ~1.3 GB per call, with the full allocation leaked on every error path. The issue is reachable via load_analyze() and the generic load() when the file extension is .hdr, .img, or .nii. Version 4.0.0 fixes the issue.