CVE-2026-55969
Integer overflow in Apache Thrift (<0.24.0) across multiple language bindings.
Is CVE-2026-55969 being exploited?
Not confirmed. CVE-2026-55969 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 0.65% probability of exploitation in the next 30 days.
How severe is CVE-2026-55969?
CVE-2026-55969 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-2026-55969?
Yes. A fix has been recorded for CVE-2026-55969. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-55969 affect?
CVE-2026-55969 affects Apache Thrift < 0.24.0, Thrift C++, Thrift c_glib, Thrift Go, and 3 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-55969?
Upgrade Apache Thrift to 0.24.0 immediately and rebuild/deploy affected services.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Integer overflow/wraparound can cause memory corruption, crashes, and may enable remote code execution when processing crafted Thrift messages.
Immediate action required
- affected< 0.24.0
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.