medium5.5
CVE-2026-62254
LibreDWG is a free C library to read and write DWG files.
Impact
LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14.
Affected products
| Product | Affected versions |
|---|---|
| LibreDWG Is A Free C Library To Read And Write DWG Files. | before 0.14 |
Versions were read from the advisory text. No structured product data has been published for this record yet.