# CVE-2026-111147: Libyal libesedb heap out-of-bounds read in record parsing

Source: https://junglewise.ai/threats/cve-2026-111147-libyal-libesedb-through-20260704-contains-a-heap-out-of-bounds  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111147 · Severity: medium · CVSS 6.1 · Published 2026-10-15

Libyal libesedb is a library for reading Extensible Storage Engine database files commonly found in Windows systems. A heap out-of-bounds read vulnerability in the multi-value record processing function allows attackers to crash the application or leak up to 32 KiB of sensitive heap memory by providing a malicious database file.

Vendors: [Libyal](https://junglewise.ai/threats/vendors/libyal).

## Quick answers

**Is CVE-2026-111147 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111147 being exploited in the wild.

**How severe is CVE-2026-111147?** Medium severity, with a CVSS score of 6.1, published 15 October 2026.

**Which products and versions are affected?** Libyal Libesedb through 20260704.

**Is there a fix for CVE-2026-111147?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111147 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-111147?** Check whether you run Libyal Libesedb at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a heap out-of-bounds read in the libesedb_record_get_multi_value() function caused by unbounded multi-value offset tables, allowing an attacker to read past allocated buffers. The attack requires providing a crafted ESE/EDB database file processed by tools like esedbexport, with no authentication or user interaction needed beyond opening the file. An attacker can leak adjacent heap memory or cause a denial of service crash.

## Affected products

- Libyal libesedb through 20260704

## Timeline

- 2026-10-15: disclosed

## References

- [https://github.com/](https://github.com/)
- [https://github.com/libyal/libesedb](https://github.com/libyal/libesedb)