CVE-2026-0847
NLTK path traversal allows arbitrary file read.
Is CVE-2026-0847 being exploited?
Not confirmed. CVE-2026-0847 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 0.90% probability of exploitation in the next 30 days.
How severe is CVE-2026-0847?
CVE-2026-0847 is rated High with a CVSS score of 8.6. 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-2026-0847?
Yes. A fix has been recorded for CVE-2026-0847. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-0847 affect?
CVE-2026-0847 affects NLTK. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-0847?
Upgrade NLTK to a fixed version; validate inputs; monitor NLP endpoints.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary file read via path traversal; may expose system files, SSH keys, tokens; could enable RCE when chained.
Patch when possible
- affected<= latest
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.