r-cran-readxl: A heap-buffer-overflow and use-after-free vulnerability exists in the xls_getCSS() function of libxls 1.6.3 due to in...
CVE-2026-79591 is fixed in r-cran-readxl on 1 platform by DEBIAN-CVE-2026-79591 (version 1.6.0-1), released September 10, 2026. It is not reported as exploited. Patch Radar priority: High.
A heap-buffer-overflow and use-after-free vulnerability exists in the xls_getCSS() function of libxls 1.6.3 due to insufficient validation of a file-controlled font index.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| r-cran-readxl · Debian 14 | 1.6.0-1 | DEBIAN-CVE-2026-79591 | Sep 10, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.