PT-2026-68727 · Llama.Cpp · Llama.Cpp
CVE-2026-43628
·
Published
2026-08-06
·
Updated
2026-08-07
CVSS v4.0
8.5
High
| Vector | AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
llama.cpp versions b3978 through b9058
Description
An integer underflow and out-of-bounds read issue exists in the DRY sampler. Unauthenticated attackers can trigger a heap buffer underflow by sending a crafted HTTP request to the '/v1/completions' or '/v1/chat/completions' endpoints with the
dry allowed length variable set to INT32 MIN. This can lead to a server crash via SIGSEGV, resulting in a denial of service, or the corruption of token sampling probabilities due to the reading of garbage values from memory preceding the allocated buffer.Recommendations
Update llama.cpp to a version later than b9058.
Avoid using the
dry allowed length parameter in the '/v1/completions' and '/v1/chat/completions' endpoints until the software is updated.Fix
DoS
Integer Underflow
Out of bounds Read
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Related Identifiers
Affected Products
Llama.Cpp