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Vulnerability · Published Aug 18, 2026 · Assigned by VulDB

CVE-2026-75090EricLBuehler Mistral.rs GGUF Tokenizer gguf_tokenizer.rs convert_gguf_to_hf_tokenizer out-of-bounds

Medium 4.3

In plain English

A medium-severity out-of-bounds read in Mistral.rs from EricLBuehler. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.7%top 47.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in EricLBuehler Mistral.rs up to 0.8.22. Affected by this issue is the function convert_gguf_to_hf_tokenizer of the file mistralrs-core/src/gguf/gguf_tokenizer.rs of the component GGUF Tokenizer. The manipulation of the argument eos_token_id/bos_token_id/unknown_token_id results in out-of-bounds read. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 0.8.23 can resolve this issue. The patch is identified as cd5297e2ea5cb27c790bdcf2f3c2f1064a81d55e. Upgrading the affected component is recommended.

Affected products (as reported)

VendorProductVersions
EricLBuehler Mistral.rs 0.8.00.8.10.8.20.8.30.8.40.8.50.8.60.8.7

Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References