---
id: "CVE-2026-112053"
kind: "vulnerability"
aliases: ["CVE-2026-112053"]
title: "libschroedinger: crafted Dirac stream reads past quantiser table, crashes decoders"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dirac-decoding", "libschroedinger", "media-pipelines", "package"]
not_affected_if: ["no-dirac-decoding"]
published_at: "2026-10-18T13:16:37+00:00"
first_seen_at: "2026-10-23T21:57:15+00:00"
updated_at: "2026-10-25T03:45:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112053", "first_seen_at": "2026-10-23T21:57:15+00:00"}]
---

# libschroedinger: crafted Dirac stream reads past quantiser table, crashes decoders

libschroedinger is a library for decoding Dirac video streams. A crafted low-delay Dirac stream with an out-of-range wavelet filter index or transform depth makes it read past a static quantiser table, which crashes the decoding application.

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

## Timeline

- 2026-10-23T21:57:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112053

## From the sources

Schroedinger libschroedinger through 1.0.11 contains an out-of-bounds read vulnerability that allows attackers to read past a static quantiser table by supplying unvalidated wavelet filter index or transform depth values. Attackers can deliver a crafted low-delay Dirac stream with a wavelet filter index of 7 or more or transform depth of 5 or 6 to crash decoding applications.

---

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