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CVE-2026-112012— libtta through 2.3 Stack Out-of-Bounds Write via Zero Channel Count

Quick assessment

Affected
True Audio libtta
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libtta 2.3 及更早版本存在堆栈越界读取和写入漏洞，该漏洞位于 和 函数中。原因是头部检查逻辑从未拒绝通道数为零的情况。攻击者可提供一个精心构造的 文件，声明通道数为零，从而在解码过程中使去相关（decorrelation）操作访问 并使用源自数据流的值，最终导致解码应用的堆栈内存被破坏。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
True Audio libtta ≤ 2.3 affected
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I. Basic Information for CVE-2026-112012

Vulnerability Information
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Vulnerability Title
libtta through 2.3 Stack Out-of-Bounds Write via Zero Channel Count
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
True Audio libtta 0 ~ 2.3 -

II. Public POCs for CVE-2026-112012

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III. Intelligence Information for CVE-2026-112012

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Vendor Advisories for CVE-2026-112012 (1)

Proof of Concept for CVE-2026-112012 (1)

Other References for CVE-2026-112012 (1)

Same Patch Batch · True Audio · 2026-10-18 · 3 CVEs total

CVE-2026-112013 5.5 MEDIUM libtta through 2.3 Divide by Zero via tta_decoder_init_get_info
CVE-2026-112011 5.3 MEDIUM libtta through 2.3 Integer Overflow via tta_decoder_init_get_info Seek Table

IV. Related Vulnerabilities

Same product: libtta
Same vendor: True Audio
Same weakness: CWE-787

V. Comments for CVE-2026-112012

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