Description
A security flaw has been discovered in Turboderp-org ExLlamaV3 up to 1.6.3. The affected element is the function ngram_dequant of the file exllamav3/exllamav3_ext/ngram.cu of the component NGramEmbedding. The manipulation of the argument head_bias results in out-of-bounds read. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.4 is sufficient to fix this issue. The patch is identified as c9a57ae832a3035e264e0a412e1daf4ebb699b98. It is suggested to upgrade the affected component.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Turboderp-org | ExLlamaV3 | 1.6.0, 1.6.1, 1.6.2, 1.6.3 | 1.6.4 |
References
- VDB-433165 | Turboderp-org ExLlamaV3 NGramEmbedding ngram.cu ngram_dequant out-of-bounds vdb-entry technical-description
- VDB-433165 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-124994 | CVE Analysis and Report third-party-advisory
- Submit #1040626 | turboderp-org exllamav3 commit 6ff3a17ea7f3 (version 1.4.8) Out-of-bounds Read third-party-advisory
- https://github.com/turboderp-org/exllamav3/issues/525 issue-tracking
- https://github.com/user-attachments/files/33598849/poc.zip exploit
- https://github.com/turboderp-org/exllamav3/commit/c9a57ae832a3035e264e0a412e1daf4ebb699b98 patch
- https://github.com/turboderp-org/exllamav3/releases/tag/v1.6.4 patch
- https://github.com/turboderp-org/exllamav3/ product