CVE-2026-52876
Renderer-controlled path can launch local executables, escaping the sandbox.
Is CVE-2026-52876 being exploited?
Not confirmed. CVE-2026-52876 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.15% probability of exploitation in the next 30 days.
How severe is CVE-2026-52876?
CVE-2026-52876 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-52876?
Yes. A fix has been recorded for CVE-2026-52876. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-52876 affect?
CVE-2026-52876 affects StreamBERT < 2.6.0, Electron apps with unvalidated openPath IPC handlers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-52876?
Upgrade to StreamBERT v2.6.0; validate IPC paths; limit renderer privileges.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Compromised renderer can cause OS to execute local executables/scripts as the StreamBERT user, enabling sandbox escape and arbitrary code execution.
Patch when possible
- affected< 2.6.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.