AUGUST 16, 2026
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Case File

CVE-2026-43628

HIGH · CVSS 7.8 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-06 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The vulnerability affects specific builds of llama.cpp, where an integer underflow and out-of-bounds read in the DRY sampler can be exploited by unauthenticated attackers through crafted HTTP requests. This can lead to a denial of service by crashing the server or corrupting token sampling probabilities, potentially exposing sensitive data. Organizations using the affected versions should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-43628
Severity
HIGH
CVSS
7.8
EPSS
0.20%

Original NVD Description

llama.cpp builds b3978 through b9058 contain an integer underflow and out-of-bounds read vulnerability in the DRY sampler that allows unauthenticated attackers to trigger a heap buffer underflow by sending a crafted HTTP request with dry_allowed_length set to INT32_MIN to the /v1/completions or /v1/chat/completions endpoints. Attackers can exploit this vulnerability to crash the server with SIGSEGV causing denial of service for all connected users, or corrupt token sampling probabilities by reading garbage values from memory before the allocated buffer.