CVE-2026-90843 is a high-severity (CVSS 8.3) CWE-77 vulnerability. O3 Security confirms whether CVE-2026-90843 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
A security vulnerability has been detected in SabyasachiRana WebMap up to 8b95fe4dc301a3c09ddf145b895de0bf9f8d2a25. This affects the function nmap_newscan of the file functions_nmap.py…
Description
A security vulnerability has been detected in SabyasachiRana WebMap up to 8b95fe4dc301a3c09ddf145b895de0bf9f8d2a25. This affects the function nmap_newscan of the file functions_nmap.py of the component New Nmap Scan Handler. Such manipulation of the argument target/params leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The name of the patch is 3d52f65803a2716bff14d938352c6fef45b0cfb6. A patch should be applied to remediate this issue. This issue got fixed with a silent patch.
Detection & mitigation playbook
VulnerabilityDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of the affected component has shipped for CVE-2026-90843 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2026-90843 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2026-90843. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-90843 in your dependencies?
O3 detects CVE-2026-90843 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.