---
id: "CVE-2026-112280"
kind: "vulnerability"
aliases: ["CVE-2026-112280"]
title: "libaribb24: heap overflow in caption parser lets crafted media crash players"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ffmpeg", "libaribb24", "media-processing", "package", "vlc"]
not_affected_if: ["no-aribb24-library", "trusted-media-only"]
published_at: "2026-10-19T14:17:06+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T03:40:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112280", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# libaribb24: heap overflow in caption parser lets crafted media crash players

libaribb24 through 1.0.3 has a heap-based buffer overflow in src/parser.c when it parses an oversized caption data unit. A crafted caption PES packet in a media file or broadcast stream, processed by arib_parse_pes(), can crash FFmpeg or VLC and may corrupt further memory.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether the `aribb24` library is installed, for example with `pkg-config --modversion aribb24` or by looking for libaribb24 in your package manager.
- Check whether FFmpeg or VLC on the system is built with libaribb24 support.

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112280

## From the sources

libaribb24 (aribb24) through 1.0.3 contains a heap-based buffer overflow vulnerability in src/parser.c that allows attackers to corrupt heap memory via an oversized caption data unit. Attackers can supply a crafted caption PES packet in a media file or broadcast stream, processed through arib_parse_pes(), to crash FFmpeg or VLC and possibly corrupt further memory.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_