UBUNTU-CVE-2026-116096

Source
https://ubuntu.com/security/CVE-2026-116096
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116096.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-116096
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:16:51Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:26.10 / llama.cpp

Package

Name
llama.cpp
Purl
pkg:deb/ubuntu/llama.cpp?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

Other
8681+dfsg-1
9721+dfsg-1ubuntu1
10438+dfsg-1
10438+dfsg-1ubuntu1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libllama0",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp-examples",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp-services",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp-tests",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp-tools",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "llama.cpp-tools-extra",
            "binary_version":  "10438+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "python3-gguf",
            "binary_version":  "10438+dfsg-1ubuntu1"
        }
    ]
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116096.json"

Ubuntu:26.04:LTS / llama.cpp

Package

Name
llama.cpp
Purl
pkg:deb/ubuntu/llama.cpp?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

Other
5882+dfsg-2
8064+dfsg-1ubuntu1
8681+dfsg-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libllama0",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-examples",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tests",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tools",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tools-extra",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "python3-gguf",
            "binary_version":  "8681+dfsg-1"
        }
    ]
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116096.json"