---
id: "CVE-2026-112012"
kind: "vulnerability"
aliases: ["CVE-2026-112012"]
title: "libtta: crafted TTA file with zero channels corrupts stack memory"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["audio-decoding", "c", "libtta", "package"]
not_affected_if: ["no-tta-decoding"]
published_at: "2026-10-18T12:17:13+00:00"
first_seen_at: "2026-10-23T21:57:15+00:00"
updated_at: "2026-10-25T04:26:44+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112012", "first_seen_at": "2026-10-23T21:57:15+00:00"}]
---

# libtta: crafted TTA file with zero channels corrupts stack memory

libtta, a library for decoding True Audio (TTA) files, does not reject a header declaring zero channels. A crafted .tta file therefore makes the decoder read and write outside a stack buffer, corrupting memory in any application that decodes it.

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

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-23T21:57:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112012

## From the sources

libtta through 2.3 contains a stack out-of-bounds read and write vulnerability in tta_decoder_process_stream() and tta_decoder_process_frame() because header checks never reject a zero channel count. Attackers can supply a crafted .tta file declaring zero channels so decorrelation accesses cache[-1] with stream-derived values, corrupting stack memory in decoding applications.

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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_