CVE-2026-3816
MEDIUMDescription
A security vulnerability has been detected in OWASP DefectDojo up to 2.55.4. This vulnerability affects the function input_zip.read of the file parser.py of the component SonarQubeParser/MSDefenderParser. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.56.0 is able to resolve this issue. The identifier of the patch is e8f1e5131535b8fd80a7b1b3085d676295fdcd41. Upgrading the affected component is recommended.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Exploit Intelligence
Moderate risk: more likely to be exploited than 53% of all known CVEs.
References
Related Vulnerabilities
Other CWE-404 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-44267 | Medium | 6.5 | 77% | - | Fix |
| CVE-2018-8120 | High | 7.0 | 73% | KEV + Ransom | - |
| CVE-2018-8210 | High | 7.8 | 25% | - | - |
| CVE-2018-8639 | High | 7.8 | 22% | KEV + Ransom | - |
| CVE-2023-3206 | Medium | 5.3 | 19% | - | - |
| CVE-2018-8450 | High | 8.8 | 16% | - | - |
Common questions
How do I fix CVE-2026-3816?
Upgrade defectdojo to 2.56.0 or later.
Is CVE-2026-3816 being actively exploited?
Not that we know of. CVE-2026-3816 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.74% is the estimated probability that it will be exploited in the next 30 days. That is higher than 53% of all scored CVEs.
How severe is CVE-2026-3816?
CVE-2026-3816 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-3816 affect?
Published advisories record a fix for defectdojo (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-3816
Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.