Vulnerability in Jahlives OpenSSL Encrypt
CVE-2026-81693
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-r23m-gf2m-8www) (vendor-advisory, Vendor Advisory)
- VulnCheck Advisory: openssl_encrypt before 1.4.9 Denial of Service via QR total field (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-81693?
- CVE-2026-81693 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under CWE-789. CVSS score: 7.5/10. Published 2026-08-27.
- How severe is CVE-2026-81693?
- High severity. CVSS v3 base score is 7.5 out of 10.