CVE-2026-0994
DoS in google.protobuf.json_format.ParseDict() via Any nesting bypassing recursion depth
Is CVE-2026-0994 being exploited?
Not confirmed. CVE-2026-0994 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 0.69% probability of exploitation in the next 30 days.
How severe is CVE-2026-0994?
CVE-2026-0994 is rated High with a CVSS score of 8.2. 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-2026-0994?
Yes. A fix has been recorded for CVE-2026-0994. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-0994 affect?
CVE-2026-0994 affects google.protobuf library, Python protobuf.json_format.ParseDict(). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-0994?
Update protobuf to patched version; limit input depth
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
DoS: deeply nested Any messages bypass recursion limit, causing RecursionError and service downtime.
Patch when possible