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CVE-2026-75090: Out-of-Bounds Read in EricLBuehler Mistral.rs

0
Medium
VulnerabilityCVE-2026-75090cvecve-2026-75090
Published: 08/18/2026 (08/18/2026, 01:15:14 UTC)
Source: CVE Database V5
Vendor/Project: EricLBuehler
Product: Mistral.rs

Description

CVE-2026-75090 is a medium severity vulnerability in EricLBuehler Mistral.rs up to version 0.8.22. It involves an out-of-bounds read in the convert_gguf_to_hf_tokenizer function within the GGUF Tokenizer component. The issue arises from manipulation of the eos_token_id, bos_token_id, or unknown_token_id arguments. This vulnerability can be exploited remotely and public exploit code is available. Upgrading to version 0.8.23 resolves the issue.

CVSS v4.0

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Affected software

EricLBuehler

Mistral.rs

Affected versions
=0.8.0=0.8.1=0.8.2=0.8.3=0.8.4=0.8.5=0.8.6=0.8.7=0.8.8=0.8.9=0.8.10=0.8.11=0.8.12=0.8.13=0.8.14=0.8.15=0.8.16=0.8.17=0.8.18=0.8.19=0.8.20=0.8.21=0.8.22
crates.iomore threats →ai
github/EricLBuehler/mistral.rs
pkg:cargo/github/EricLBuehler/mistral.rs
Affected versions
=0.8.0=0.8.1=0.8.2=0.8.3=0.8.4=0.8.5=0.8.6=0.8.7=0.8.8=0.8.9=0.8.10=0.8.11=0.8.12=0.8.13=0.8.14=0.8.15=0.8.16=0.8.17=0.8.18=0.8.19=0.8.20=0.8.21=0.8.22
CPE configurations
cpe:2.3:a:ericlbuehler:mistral.rs:*:*:*:*:*:*:*:*

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 23:32:28 UTC

Technical Analysis

An out-of-bounds read vulnerability exists in the convert_gguf_to_hf_tokenizer function of the GGUF Tokenizer component in EricLBuehler Mistral.rs versions up to 0.8.22. The flaw is triggered by manipulating the eos_token_id, bos_token_id, or unknown_token_id arguments, leading to memory access beyond intended bounds. The vulnerability is remotely exploitable, and public exploit code has been released. The issue is fixed in version 0.8.23 with patch cd5297e2ea5cb27c790bdcf2f3c2f1064a81d55e.

Potential Impact

Successful exploitation can cause out-of-bounds memory reads, potentially leading to information disclosure or application instability. The vulnerability is remotely exploitable without privileges or user interaction, increasing risk. The CVSS 4.0 base score is 5.3 (medium severity).

Mitigation Recommendations

Upgrade EricLBuehler Mistral.rs to version 0.8.23 or later, which contains the official fix for this vulnerability. No other mitigations are indicated.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-08-17T16:35:41.582Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a83bbd9bf8831d539fd23f5

Added to database: 08/18/2026, 01:56:41 UTC

Last enriched: 09/11/2026, 23:32:28 UTC

Last updated: 10/02/2026, 02:46:06 UTC

Views: 68

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