Crypto flaw in widely-used wolfSSL ML-KEM-1024 allows private-key recovery via chosen ciphertexts, impacting TLS/embedded systems.
CVE-2026-10097
IND-CCA2 flaw in wolfSSL ML-KEM-1024 decapsulation; private key recovery.
Is CVE-2026-10097 being exploited?
Not confirmed. CVE-2026-10097 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 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2026-10097?
CVE-2026-10097 is rated High with a CVSS score of 8.3. 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-2026-10097?
Yes. A fix has been recorded for CVE-2026-10097. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-10097 affect?
CVE-2026-10097 affects wolfSSL ML-KEM-1024, TLS deployments using wolfSSL, Embedded systems using ML-KEM-1024. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-10097?
Plan upgrade to patched wolfSSL ML-KEM; monitor advisories.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can recover ML-KEM-1024 private key via chosen ciphertexts, enabling decryption and impersonation.
Monitor only
- affected>= 5.7.0 and <= 5.9.1
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.