Is CVE-2026-81693 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-81693?

CVE-2026-81693 has a CVSS v3 severity of HIGH (7.5).

Back

CVE-2026-81693

Description

openssl_encrypt before 1.4.9 fails to validate the total field from QR JSON payloads before materializing ranges. Attackers can supply crafted QR images with extremely large total values to trigger unbounded memory allocation and cause denial of service through out-of-memory conditions.