CVE-2026-116096 Details
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.
A vulnerability allowing heap-based out-of-bounds write has been identified in the Pocket-TTS component of ggml-org llama.cpp. This issue arises in the audio generation pipeline, specifically within the 'list_pockettts_state_slots' function of 'tools/mtmd/models/pockettts-gen.cpp'. The vulnerability is triggered by a malicious 'mmproj' argument, leading to memory corruption. Exploitation of this vulnerability requires local access.
Users are advised to upgrade to version b11796 or later, where this vulnerability has been addressed. The latest release can be downloaded from the ggml-org llama.cpp releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 25, 2026CISA-ADP
Assessed Oct 26, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/3em0/cve_repo/tree/main/2026/llama.cpp.pockettts_state_heap_oob_rce | [email protected] | |
| https://github.com/3em0/cve_repo/tree/main/2026/llama.cpp.pockettts_state_heap_oob_rce/poc | [email protected] | Exploit |
| https://github.com/ggml-org/llama.cpp/ | [email protected] | Vendor |
| https://github.com/ggml-org/llama.cpp/commit/0a1ef309cdbb9f2024f58a38fb4c42352c5db569 | [email protected] | Source CodeVendor |
| https://github.com/ggml-org/llama.cpp/pull/30902 | [email protected] | Issue TrackingVendor |
| https://github.com/ggml-org/llama.cpp/releases/tag/b11796 | [email protected] | Release NotesVendor |
| https://vuldb.com/cve/CVE-2026-116096 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1000891 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/426164 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/426164/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ggml-org llama.cpp | All versions |
CPE
Remediation
| |
| Pocket-TTS | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 26, 2026 | CVE Modified | CISA-ADP |
| Oct 25, 2026 | New CVE Received | [email protected] |