Cyber ·
Study presents Spectre-v2 attacks against JIT engines
An announcement published on September 29, 2026 shares a study, paper, and proof-of-concept code on Spectre-v2 attacks against JIT engines using stale branch-prediction entries.
The announcement, published by Alan Coopersmith on September 29, 2026 and distributed through the oss-sec feed, presents the “Branch Target Reuse” study on practical Spectre-v2 attacks against JIT engines via stale branch-prediction entries. It also points to a paper and proof-of-concept code. The feed does not detail experimental results or specify mitigations, so the announcement alone does not establish which measures were evaluated.
To consult and verify the material, find the original announcement in the oss-sec feed archive and check its references to the paper, project, and code. Read the paper for its method and reported results, and handle the proof of concept cautiously, in an authorized, isolated environment. If you use AI to study or apply the material, avoid entering internal or identifiable data; prefer synthetic examples and follow your organization’s security rules.