Cross-language Apache Thrift RCE affecting many bindings and backend apps; high CVSS and broad developer footprint warrants broad IT/devops notice.
CVE-2026-85494
Apache Thrift RCE via improper length/alloc handling in multiple language bindings
Is CVE-2026-85494 being exploited?
Not confirmed. CVE-2026-85494 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.
How severe is CVE-2026-85494?
CVE-2026-85494 is rated High with a CVSS score of 8.7. 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-2026-85494?
Yes. A fix has been recorded for CVE-2026-85494. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85494 affect?
CVE-2026-85494 affects Apache Thrift < 0.25.0, Thrift Python binding, Thrift Ruby binding, Thrift Erlang binding, and 7 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85494?
Upgrade to Thrift 0.25.0+, rebuild/deploy, block/monitor exposed Thrift endpoints
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution, crashes or memory exhaustion from crafted Thrift requests exploiting length/alloc and exception handling flaws.
Immediate action required
- affected< 0.25.0
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.