CVE-2026-124994 Turboderp-org ExLlamaV3 NGramEmbedding ngram.cu ngram_dequant out-of-bounds
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124994?
CVE-2026-124994 is a medium-severity vulnerability in Turboderp-org ExLlamaV3, published on 9 Nov 2026.
Official 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.
Which versions are affected by CVE-2026-124994?
How do I fix CVE-2026-124994?
No fix has been published for CVE-2026-124994 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124994 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124994 exists.
Sources
Also known as GHSA-j4r8-fvvv-jfj8.