---
id: "CVE-2026-112054"
kind: "vulnerability"
aliases: ["CVE-2026-112054"]
title: "libschroedinger: divide-by-zero in Dirac decoder lets crafted stream crash apps"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dirac-video", "libschroedinger", "media-decoding", "package"]
not_affected_if: ["no-dirac-decoding", "trusted-input-only"]
published_at: "2026-10-18T13:16:37+00:00"
first_seen_at: "2026-10-23T21:57:15+00:00"
updated_at: "2026-10-25T03:44:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112054", "first_seen_at": "2026-10-23T21:57:15+00:00"}]
---

# libschroedinger: divide-by-zero in Dirac decoder lets crafted stream crash apps

libschroedinger, the Dirac video codec library, divides by zero when a Dirac stream sets slice_bytes_denom or the slice count to zero. An attacker who supplies a crafted low-delay picture can crash any application that decodes it, through a SIGFPE.

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

## How to check

- Check whether the application links libschroedinger, for example with `ldconfig -p | grep schro` or `pkg-config --modversion schroedinger-1.0`
- Check the installed version against `1.0.11`; unknown whether all releases up to that version are the only affected ones

## Fix

- unknown: the sources do not name a patched version or a vendor fix
- Until a fix is available, reject or do not decode untrusted Dirac streams with libschroedinger

## Timeline

- 2026-10-23T21:57:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112054

## From the sources

Schroedinger libschroedinger through 1.0.11 contains a divide by zero vulnerability that allows attackers to crash applications by supplying a zero slice_bytes_denom or slice count in a Dirac stream. Attackers can provide a crafted low-delay picture parsed by schro_decoder_parse_transform_parameters and schro_decoder_parse_lowdelay_transform_data to trigger a SIGFPE and cause denial of service.

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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_