CVE-2026-70383
Path traversal in DigiDoc4 allows access or overwrite of local files.
Is CVE-2026-70383 being exploited?
Not confirmed. CVE-2026-70383 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-2026-70383?
CVE-2026-70383 is rated High with a CVSS score of 8.4. 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-2026-70383?
Yes. A fix has been recorded for CVE-2026-70383. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-70383 affect?
CVE-2026-70383 affects DigiDoc4 client 4.0.0 to before 4.11.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-70383?
Upgrade DigiDoc4 to 4.11.0 or later and restrict client access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Path traversal lets an attacker read or overwrite arbitrary files via crafted pathnames, exposing sensitive data, enabling tampering of signed documents, and possible code execution.
Patch when possible
- affected>= 4.0.0 and < 4.11.0
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.