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TI-2026-76165 Aliases CVE-2026-112013GHSA-phg4-99g6-v62p

Divide by zero in libtta lets crafted files crash applications

Priority MEDIUM 63CWE-369Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-369.

Summary

True Audio libtta through 2.3 contains a divide by zero flaw (CWE-369) in tta_decoder_init_get_info(), which does not validate a zero sample rate. If a user opens a crafted .tta file with a recomputed header CRC32, applications crash with SIGFPE, including the bundled tta console tool. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

libtta through 2.3 contains a divide-by-zero vulnerability in tta_decoder_init_get_info() that allows attackers to crash applications by supplying an unvalidated zero sample rate. Attackers can craft a .tta file with a recomputed header CRC32 that triggers SIGFPE, crashing applications including the bundled tta console tool.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0013 2nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
True Audiolibttaup to 2.3—No fix listedCNA
  • libtta VendorTrue Audio Affected up to 2.3 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libtta.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112013
  2. 2026-10-18 Alias added: GHSA-phg4-99g6-v62p
  3. 2026-10-19 Priority changed: MEDIUM → LOW
  4. 2026-10-20 CISA SSVC decision points changed
  5. 2026-10-20 Priority changed: LOW → MEDIUM

References

Exploit 1

Other 3

  • TI-2026-76163 Integer overflow in libtta seek table allocation enables heap overflow CVSS 4.0MEDIUM 5.8
  • TI-2026-76164 Stack out-of-bounds read and write in libtta via zero channel count CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences