# CVE-2026-112057: libdvdnav before 7.0.0 Out-of-Bounds Read in dvdnav_describe_title_chapters

> Attackers can cause denial of service or read sensitive memory by supplying a crafted DVD image to applications using libdvdnav.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Also known as:** AZL-108566, DEBIAN-CVE-2026-112057, ECHO-ccc6-e714-3b47, GHSA-2m5j-rc78-vx58, UBUNTU-CVE-2026-112057

## What is CVE-2026-112057?

CVE-2026-112057 is a medium-severity memory corruption vulnerability in VideoLAN libdvdnav, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

libdvdnav before 7.0.0 contains a heap out-of-bounds read vulnerability in dvdnav_describe_title_chapters that allows attackers to read beyond the part-of-title array by supplying an oversized vts_ttn value. Attackers can provide a crafted DVD or disc image declaring a larger VMGI title vts_ttn than the title set's entries to crash applications enumerating chapters.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2026-112057?


## How do I fix CVE-2026-112057?

No fix has been published for CVE-2026-112057 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-112057 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112057 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-112057 and fix it if it is affected.

What it is: CVE-2026-112057 is a medium-severity memory corruption vulnerability in VideoLAN libdvdnav, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112057 exists.

Affected product: VideoLAN libdvdnav. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-112057/ (Markdown: https://insights.sbomify.com/CVE-2026-112057/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-112057
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-112057
- OSV: https://osv.dev/vulnerability/CVE-2026-112057

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-112057/
Summaries are generated and may contain mistakes; the official description above is the record.