Vulnerability in Easybyte Software Konga
CVE-2026-45221
Konga before 2.1.0 contains a privilege escalation vulnerability that allows low-privileged local attackers to execute arbitrary code by planting attacker-controlled OpenSSL configuration or library files in a hardcoded filesystem path absent from default installations. On Windows, the missing directory resides in a location writable by any authenticated local user, enabling attackers to create the directory and place malicious files that execute at the privilege level of the user or service account that launches Konga, facilitating privilege escalation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- public.easybyte.it/downloads/archive/2.1.0 (patch)
- www.easybyte.it/ (product)
- www.vulncheck.com/advisories/konga-privilege-escalation-via-hardcoded-openssl-p… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-45221?
- CVE-2026-45221 is a high-severity vulnerability in Easybyte Software Konga, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2026-09-01.
- How severe is CVE-2026-45221?
- High severity. CVSS v3 base score is 7.8 out of 10.