FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an authorization bypass in the /api/getTagValue endpoint allows unauthenticated access to tag values when the referenced script does not exist. Version 1.3.1 patches the issue.
CVE-2026-43946
HIGHPre-NVD 7.77.7—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.7Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.7
- EG Score
- 7.7(medium)
- EG Risk
- 66(Attend)EG Risk 66/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity77% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS
- 42.3%
- KEV
- Not listed
Published
May 26, 2026
Last Modified
July 23, 2026
Advisory Details (4)
Auto-updated Jul 22, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available🟡 PoC Available
Unauthenticated arbitrary tag value disclosure via /api/getTagValue · Advisory · frangoteam/FUXA · GitHub
https://github.com/frangoteam/FUXA/security/advisories/GHSA-fwcm-rqvw-j3p7github_release Patch Available
v1.3.1
Patch available: frangoteam/FUXA v1.3.1
https://github.com/frangoteam/FUXA/releases/tag/v1.3.1github_pr Patch Available
Security fixes
Patch available: frangoteam/FUXA v1.3.1 (PR #2260 merged 2026-03-19)
https://github.com/frangoteam/FUXA/pull/2260github_commit Patch Available
commit 78534da61a91 (frangoteam/FUXA)
Patch available: frangoteam/FUXA v1.3.1 (contains commit 78534da61a91)
https://github.com/frangoteam/FUXA/commit/78534da61a91613712b44bb63c8d7da8c5df5ca4Vendor Advisories for CVE-2026-43946(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| fuxa-server | 1.3.0 | 1.3.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:14 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 23:13 UTCEG score recompute▲ 7.70
- 2026-07-21 21:38 UTCMITRE cvelistV5CVSS v3 → 7.7 · CVSS v4 → 7.7
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-05-27 00:14 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-863
Frequently asked(5)
What is CVE-2026-43946?
CVE-2026-43946 is a high vulnerability published on May 26, 2026. FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an authorization bypass in the /api/getTagValue endpoint allows unauthenticated access to tag values when the referenced script does not exist. Version 1.3.1 patches the issue.
When was CVE-2026-43946 disclosed?
CVE-2026-43946 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43946 actively exploited?
CVE-2026-43946 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43946?
CVE-2026-43946 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-43946?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43946, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43946
Is Your Infrastructure Affected by CVE-2026-43946?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.