Vulnerability · Published Oct 26, 2026 · Assigned by VulDB

CVE-2026-116467ggml-org llama.cpp Mirostat Sampler llama-sampler.cpp assertion

Medium 5.3

In plain English

A medium-severity security flaw in llama.cpp from ggml-org. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.6%top 49.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in ggml-org llama.cpp up to 0.7.0. Affected by this vulnerability is an unknown functionality of the file src/llama-sampler.cpp of the component Mirostat Sampler. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The project was informed of the problem early through a pull request but has not reacted yet.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:14	llama.cpp	no fix listed	DEBIAN-CVE-2026-116467
Ubuntu:26.04:LTS	llama.cpp	no fix listed	UBUNTU-CVE-2026-116467
Ubuntu:26.10	llama.cpp	no fix listed	UBUNTU-CVE-2026-116467

Affected products (as reported)

Vendor	Product	Versions
ggml-org	llama.cpp	0.10.20.30.40.50.60.7.0

Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C

References

VDB-426361 | ggml-org llama.cpp Mirostat Sampler llama-sampler.cpp assertion vdb-entry
VDB-426361 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-116467 | CVE Analysis and Report third-party-advisory
Submit #1013917 | ggml-org llama.cpp 2ed93db47 and earlier (fixed in PR #29992) CWE-617 (Reachable Assertion) third-party-advisory
https://github.com/ggml-org/llama.cpp/pull/29992 issue-tracking, patch
https://github.com/ggml-org/llama.cpp/ product