What happened
An incorrect object type assumption in V8 can lead to unsafe memory access when processing specially formed JavaScript.
Affected versions
Chromium: 138.0.7204.0 Fixed: 138.0.7204.12.
Why it matters
Browsers process untrusted content continuously, making memory-safety defects relevant even when additional containment must be bypassed.
Detection & mitigation
- Update Chromium-based browsers to the latest stable release.
- Confirm managed browser fleets apply automatic updates.
- Monitor vendor advisories for revised affected-version ranges.
Public PoC references
No public PoC reference has passed the current publication threshold.
Source timeline
Initial record observedView source ↗
ExploitAlert record refreshed
Record history
Record created from the first normalized source observation.
Metadata and source references refreshed.