Now You Hear Me: Audio Narrative Attacks Against Large Audio–Language Models

Ye Yu, Haibo Jin, Yaoning Yu, Jun Zhuang, Haohan Wang


Abstract
Large audio-language models increasingly operate on raw speech inputs, enabling more seamless integration across domains such as voice assistants, education, and clinical triage. This transition, however, introduces a distinct class of vulnerabilities that remain largely uncharacterized. We examine the security implications of this modality shift by designing a text-to-audio jailbreak that embeds disallowed directives within a narrative-style audio stream. The attack leverages an advanced instruction-following text-to-speech (TTS) model to exploit structural and acoustic properties, thereby circumventing safety mechanisms primarily calibrated for text. When delivered through synthetic speech, the narrative format elicits restricted outputs from state-of-the-art models, including Gemini 2.0 Flash, achieving a 98.26% success rate that substantially exceeds text-only baselines. These results highlight the need for safety frameworks that jointly reason over linguistic and paralinguistic representations, particularly as speech-based interfaces become more prevalent.
Anthology ID:
2026.eacl-long.278
Volume:
Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
March
Year:
2026
Address:
Rabat, Morocco
Editors:
Vera Demberg, Kentaro Inui, Lluís Marquez
Venue:
EACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
5925–5939
Language:
URL:
https://preview.aclanthology.org/ingest-eacl/2026.eacl-long.278/
DOI:
Bibkey:
Cite (ACL):
Ye Yu, Haibo Jin, Yaoning Yu, Jun Zhuang, and Haohan Wang. 2026. Now You Hear Me: Audio Narrative Attacks Against Large Audio–Language Models. In Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers), pages 5925–5939, Rabat, Morocco. Association for Computational Linguistics.
Cite (Informal):
Now You Hear Me: Audio Narrative Attacks Against Large Audio–Language Models (Yu et al., EACL 2026)
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PDF:
https://preview.aclanthology.org/ingest-eacl/2026.eacl-long.278.pdf