CVE-2026-42144 (GCVE-0-2026-42144)

Vulnerability from cvelistv5 – Published: 2026-05-04 17:51 – Updated: 2026-05-05 14:14
VLAI
Title
CImg Library: Integer overflow in PNM size check bypasses memory guard (_load_pnm)
Summary
CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 13:07 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7745 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
GreycLab CImg Affected: < 4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d
guessed Create a notification for this product.
Show details on NVD website
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