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Medium · 5.3 CVE-2026-116096 EUVD-2026-109577GHSA-w879-pch3-42x5

ggml-org llama.cpp Pocket-TTS pockettts-gen.cpp list_pockettts_state_slots out-of-bounds write

Published Oct 25, 2026 · Updated Oct 26, 2026 · Assigned by VulDB

Description

A weakness has been identified in ggml-org llama.cpp. Affected by this issue is the function list_pockettts_state_slots of the file tools/mtmd/models/pockettts-gen.cpp of the component Pocket-TTS. This manipulation of the argument mmproj causes out-of-bounds write. The attack requires local access. The exploit has been made available to the public and could be used for attacks. Upgrading to version b11796 can resolve this issue. Patch name: 0a1ef309cdbb9f2024f58a38fb4c42352c5db569. The affected component should be upgraded. The reported heap out‑of‑bounds write (gen‑audio / pocket‑tts state_out path) is no longer a silent exploitable heap write on current master and the latest release b11871 - a malicious mmproj that previously triggered it now trips a release‑active GGML_ASSERT and aborts. But the submitter's recommended by‑construction fix (PR #29360 "prevent OOB accesses from malformed mmproj files") is still open. So the root cause is detected‑and‑aborted, not prevented‑by‑design.

Affected products

VendorProductAffectedFixed
ggml-org llama.cpp 0.4.0, 0.17.1, 55abc39, 55d4206c8, b5693, b7445, b7824, b8492, b8585, b9058, b9060 b11796

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 llama.cpp No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 llama.cpp No fix yet —
Ubuntu 26.04 LTS llama.cpp No fix yet —

References