CVE-2026-91752
CVE-2026-91752 · GNU libextractor before 1.15 Stack Overflow via OLE2
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 8.7 · High · EPSS 0.7% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
libextractor
- Versions
- ≥ 0, < 1.15: Affected (custom)
Update to 1.15
libextractor Debian:12
- Versions
- 1:1.11-7
- 1:1.11-8
- 1:1.13-1
- 1:1.13-10
- 1:1.13-2
- 1:1.13-3
- 1:1.13-4
- 1:1.13-4+loong64
- 1:1.13-5
- 1:1.13-6
- 1:1.13-7
- 1:1.13-8
- 1:1.13-9
- 1:1.17-1
- 1:1.19-1
- 1:1.19-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Debian:13
- Versions
- 1:1.13-10
- 1:1.13-8
- 1:1.13-9
- 1:1.17-1
- 1:1.19-1
- 1:1.19-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Debian:14
- Versions
- 1:1.13-10
- 1:1.13-8
- 1:1.13-9
- Affected ranges
- ECOSYSTEM: < 1:1.17-1
Update to 1:1.17-1
libextractor Ubuntu:Pro:14.04:LTS
- Versions
- 1:1.1-1ubuntu1
- 1:1.2-1ubuntu1
- 1:1.3-1
- 1:1.3-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:16.04:LTS
- Versions
- 1:1.3-2build1
- 1:1.3-2ubuntu1
- 1:1.3-3
- 1:1.3-4+deb9u3build0.16.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:18.04:LTS
- Versions
- 1:1.3-4build3
- 1:1.6-1
- 1:1.6-1build1
- 1:1.6-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:20.04:LTS
- Versions
- 1:1.9-2
- 1:1.9-2ubuntu1
- 1:1.9-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:22.04:LTS
- Versions
- 1:1.11-5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:24.04:LTS
- Versions
- 1:1.11-8
- 1:1.13-3
- 1:1.13-3build2
- 1:1.13-3build3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:26.10
- Versions
- 1:1.13-9
- 1:1.13-10
- 1:1.19-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libextractor Ubuntu:26.04:LTS
- Versions
- 1:1.13-8build1
- 1:1.13-9
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://github.com/Haitam-lazaar/libextractor-ole2-rce
- https://git.gnunet.org/gnunet/libextractor/commit/04004eb19033e093938138b09befdf31e71e8522.html
- https://git.gnunet.org/gnunet/libextractor/commit/2781c7e9095f4ddaff4f535d69342f3903b18422.html
- https://www.gnu.org/software/libextractor/
- https://www.vulncheck.com/advisories/gnu-libextractor-before-1.15-stack-overflow-via-ole2
- http://www.openwall.com/lists/oss-security/2026/09/16/16
- https://nvd.nist.gov/vuln/detail/CVE-2026-91752