Vulnerability Description
GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://git.gnunet.org/gnunet/libextractor/commit/04004eb19033e093938138b09befdf
- https://git.gnunet.org/gnunet/libextractor/commit/2781c7e9095f4ddaff4f535d69342f
- https://github.com/Haitam-lazaar/libextractor-ole2-rce
- https://www.gnu.org/software/libextractor/
- https://www.vulncheck.com/advisories/gnu-libextractor-before-1.15-stack-overflow
- http://www.openwall.com/lists/oss-security/2026/09/16/16
FAQ
What is CVE-2026-91752?
CVE-2026-91752 is a vulnerability with a CVSS score of 7.5 (HIGH). GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data...
How severe is CVE-2026-91752?
CVE-2026-91752 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-91752?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.