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Public proof of concept

CVE-2026-90843

A public proof of concept exists; no exploitation attested.

  • Published2026-09-15
  • WeaknessCWE-77 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-09-1501:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-30 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-90843?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-90843?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-90843 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-09-16
  • OpenCVESSVC decisionpoc—
  • CNACVSS 4.05.5read 2026-10-23
  • CNACVSS 3.18.3read 2026-10-23
  • CNACVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-77, CWE-78read 2026-10-23
  • FIRST EPSSEPSS score2.2 %2026-10-29

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-09-15
Last Modified
2026-09-16
NVD status
Deferred

Frequently asked questions

What is CVE-2026-90843?

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.

Is CVE-2026-90843 actively exploited?

A proof-of-concept exploit exists for CVE-2026-90843, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-90843?

CVE-2026-90843 has a CVSS v3 base score of 8.3 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.

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