CVE-2026-19329

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-08-09. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

A vulnerability was found in andreahaku codex_mcp up to 1ff521cc6cc57cfe56ddef946c644b8534771390. The affected element is an unknown function of the file src/codex-process-simple.ts of the component ask MCP Tool. The manipulation of the argument model results in command injection. The attack requires a local approach. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

August 9, 2026

Last Modified

August 12, 2026

Advisory Details (2)

Auto-updated Aug 9, 2026
No patch confirmed yet.
generic

GitHub - andreahaku/codex_mcp · GitHub

https://github.com/andreahaku/codex_mcp/
generic

Ask Model Command Injection in andreahaku/codex_mcp · Issue #1 · andreahaku/codex_mcp · GitHub

https://github.com/andreahaku/codex_mcp/issues/1

Vendor Advisories for CVE-2026-19329(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 44× 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. 2026-08-21 03:13 UTCEG score recompute
  2. 2026-08-21 03:13 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 02:27 UTCEG score recompute
  5. 2026-08-20 02:27 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 01:41 UTCEG score recompute
  8. 2026-08-19 01:41 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-18 00:56 UTCEG score recompute
  11. 2026-08-18 00:56 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 00:05 UTCEG score recompute
  14. 2026-08-17 00:05 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 23:20 UTCEG score recompute
  18. 2026-08-15 23:20 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 22:34 UTCEG score recompute
  21. 2026-08-14 22:34 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 21:49 UTCGHSA enrichment
  24. 2026-08-12 21:04 UTCGHSA enrichment
  25. 2026-08-12 16:04 UTCEG score recompute
Show 19 more
  1. 2026-08-12 16:04 UTCGHSA enrichment
  2. 2026-08-12 13:50 UTCEPSS rescore
  3. 2026-08-11 15:16 UTCEG score recompute
  4. 2026-08-11 15:15 UTCGHSA enrichment
  5. 2026-08-11 13:42 UTCEPSS rescore
  6. 2026-08-11 00:00 UTCEPSS rescore
  7. 2026-08-10 14:30 UTCEG score recompute
  8. 2026-08-10 14:30 UTCGHSA enrichment
  9. 2026-08-10 14:28 UTCNVD updateCVSS v4 → 1.9
  10. 2026-08-10 14:06 UTCEG score recompute
  11. 2026-08-10 14:06 UTCGHSA enrichment
  12. 2026-08-10 14:05 UTCMITRE cvelistV5CVSS v4 → 4.8
  13. 2026-08-10 05:06 UTCEG score recompute
  14. 2026-08-10 05:06 UTCGHSA enrichment
  15. 2026-08-09 13:46 UTCEPSS rescore
  16. 2026-08-09 04:21 UTCEG score recompute
  17. 2026-08-09 04:20 UTCNVD updateCVSS v4 → 1.9
  18. 2026-08-09 03:40 UTCEG score recompute
  19. 2026-08-09 03:40 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19329?
CVE-2026-19329 is a medium vulnerability published on August 9, 2026. A vulnerability was found in andreahaku codex_mcp up to 1ff521cc6cc57cfe56ddef946c644b8534771390. The affected element is an unknown function of the file src/codex-process-simple.ts of the component ask MCP Tool. The manipulation of the argument model results in command injection. The attack…
When was CVE-2026-19329 disclosed?
CVE-2026-19329 was first published in the National Vulnerability Database on August 9, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19329 actively exploited?
CVE-2026-19329 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 52.8% of all scored CVEs.
What is the CVSS score of CVE-2026-19329?
CVE-2026-19329 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-19329?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19329, 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

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