CVE-2026-15829

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 93% 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
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: None knownExposed: 0

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

A SQL injection (CWE-89) and security boundary bypass (CWE-863) vulnerability exists in the prebuilt BigQuery forecasting tool (bigquery-forecast) of googleapis/mcp-toolbox.

The tool accepts client-controlled parameters (data_col, timestamp_col, and id_cols) as plain strings and interpolates them unescaped via fmt.Sprintf directly into a generated AI.FORECAST table-valued SELECT statement. While MCP Toolbox utilizes an allowedDatasets mechanism to restrict queries, this defense only validates the history_data parameter; the final assembled query is executed without re-validation.

An attacker can break out of the string literal fields (such as timestamp_col) to inject a valid multi-statement or cross-dataset query block. This allows an unauthorized user to bypass the operator-configured allowedDatasets boundary and read arbitrary BigQuery tables.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity86% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jul 21, 2026
Patch available. Sources: github_pr.
github_pr Patch Available

fix(tool/bigquery): prevent `allowedDatasets` bypass in forecast query

Patch available: googleapis/mcp-toolbox v1.4.0 (PR #3324 merged 2026-06-04)

https://github.com/googleapis/mcp-toolbox/pull/3324

Vendor Advisories for CVE-2026-15829(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 20× in last 7d / 38× 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. 2026-07-30 01:41 UTCEG score recompute
  2. 2026-07-30 01:41 UTCGHSA enrichment
  3. 2026-07-30 01:30 UTCEPSS rescore
  4. 2026-07-29 13:13 UTCGHSA enrichment
  5. 2026-07-29 00:47 UTCEG score recompute
  6. 2026-07-29 00:46 UTCGHSA enrichment
  7. 2026-07-28 12:20 UTCGHSA enrichment
  8. 2026-07-27 23:53 UTCEG score recompute
  9. 2026-07-27 23:53 UTCGHSA enrichment
  10. 2026-07-27 14:13 UTCEPSS rescore
  11. 2026-07-27 11:24 UTCGHSA enrichment
  12. 2026-07-26 22:56 UTCEG score recompute
  13. 2026-07-26 22:56 UTCGHSA enrichment
  14. 2026-07-26 14:54 UTCEPSS rescore
  15. 2026-07-26 14:54 UTCEPSS rescore
  16. 2026-07-26 10:30 UTCEG score recompute
  17. 2026-07-26 10:30 UTCGHSA enrichment
  18. 2026-07-25 14:17 UTCEPSS rescore
  19. 2026-07-24 14:17 UTCEPSS rescore
  20. 2026-07-23 14:18 UTCEPSS rescore
  21. 2026-07-23 03:05 UTCEG score recompute
  22. 2026-07-22 23:06 UTCEG score recompute
  23. 2026-07-22 23:06 UTCGHSA enrichment
  24. 2026-07-22 14:08 UTCEPSS rescore
  25. 2026-07-21 21:18 UTCGHSA enrichment
Show 13 more
  1. 2026-07-21 21:04 UTCGHSA enrichment
  2. 2026-07-21 21:00 UTCGHSA enrichment
  3. 2026-07-21 20:54 UTCGHSA enrichment
  4. 2026-07-21 20:52 UTCGHSA enrichment
  5. 2026-07-21 20:42 UTCGHSA enrichment
  6. 2026-07-21 20:41 UTCGHSA enrichment
  7. 2026-07-21 20:38 UTCGHSA enrichment
  8. 2026-07-21 20:29 UTCGHSA enrichment
  9. 2026-07-21 20:12 UTCGHSA enrichment
  10. 2026-07-21 20:08 UTCGHSA enrichment
  11. 2026-07-21 17:19 UTCEG score recompute
  12. 2026-07-21 17:04 UTCEG score recompute
  13. 2026-07-21 17:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15829?
CVE-2026-15829 is a high vulnerability published on July 21, 2026. A SQL injection (CWE-89) and security boundary bypass (CWE-863) vulnerability exists in the prebuilt BigQuery forecasting tool (bigquery-forecast) of googleapis/mcp-toolbox. The tool accepts client-controlled parameters (datacol, timestampcol, and idcols) as plain strings and interpolates them…
When was CVE-2026-15829 disclosed?
CVE-2026-15829 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15829 actively exploited?
CVE-2026-15829 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 92.7% of all scored CVEs.
What is the CVSS score of CVE-2026-15829?
CVE-2026-15829 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-15829?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15829, 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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