CVE-2026-38822

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

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 computed
Severity76% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
55%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 28, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit 294983e859bb (openNDS/openNDS)

Patch available: openNDS/openNDS v11.0.0 (contains commit 294983e859bb)

https://github.com/openNDS/openNDS/commit/294983e859bb678eef7db06fc9f6afab0b489d8e

Vendor Advisories for CVE-2026-38822(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 16× 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.

  1. 2026-08-30 03:02 UTCEG score recompute
  2. 2026-08-30 03:02 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 15:37 UTCGHSA enrichment
  5. 2026-08-29 04:08 UTCEG score recompute
  6. 2026-08-29 04:07 UTCGHSA enrichment
  7. 2026-08-28 21:41 UTCEPSS rescore
  8. 2026-08-28 16:38 UTCEG score recompute
  9. 2026-08-28 16:37 UTCGHSA enrichment
  10. 2026-08-28 15:39 UTCEG score recompute
  11. 2026-08-28 15:39 UTCGHSA enrichment
  12. 2026-08-28 13:44 UTCEG score recompute
  13. 2026-08-28 13:44 UTCGHSA enrichment
  14. 2026-08-28 02:18 UTCEG score recompute
  15. 2026-08-28 02:10 UTCEG score recompute
  16. 2026-08-28 02:07 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-38822?
CVE-2026-38822 is a high vulnerability published on August 28, 2026. In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by…
When was CVE-2026-38822 disclosed?
CVE-2026-38822 was first published in the National Vulnerability Database on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38822 actively exploited?
CVE-2026-38822 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.9% of all scored CVEs.
What is the CVSS score of CVE-2026-38822?
CVE-2026-38822 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-38822?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38822, 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

Explore the affected products and dependency analysis for CVE-2026-38822

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