Turboderp-org ExLlamaV3 EXL3 Loader out-of-bounds

Summaryinfo

A vulnerability categorized as critical has been discovered in Turboderp-org ExLlamaV3 3. Affected by this vulnerability is an unknown functionality of the component EXL3 Loader. The manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2026-84286. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Turboderp-org ExLlamaV3 3. Affected is an unknown functionality of the component EXL3 Loader. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

ExLlamaV3’s EXL3 loader uses an untrusted, model-supplied index to select a CUDA kernel without first verifying that the index is within bounds. A malicious model can force the code to read and invoke an out‑of‑range function pointer, resulting in a reproducible crash. Under specific conditions involving certain host memory layouts, it may be possible for an attacker to exploit this vulnerability to achieve controlled indirect kernel dispatch during model load.

The advisory is available at kb.cert.org. This vulnerability is traded as CVE-2026-84286 since 09/01/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Turboderp-org

Name

• ExLlamaV3

Version

• 3

CPE 2.3info

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CPE 2.2info

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CVSSv3info

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