BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.
CVE-2026-15793
HIGHPre-NVD 7.37.3—Trending — 4 sources updated this week
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% 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
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: 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 computedSeverity73% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 32.2%
- KEV
- Not listed
Published
July 21, 2026
Last Modified
July 21, 2026
Advisory Details (1)
Auto-updated Jul 21, 2026Patch available. Sources: github.
github Patch Available
Git source checkout from a bundle file could lead to command injection · Advisory · moby/buildkit · GitHub
Affected: v0.31.2+.
https://github.com/moby/buildkit/security/advisories/GHSA-hw3h-2gp9-cxpvWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× 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 03:05 UTCEG score recompute
- 2026-07-22 23:06 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 17:19 UTCEG score recompute▲ 0.80
- 2026-07-21 17:18 UTCNVD updateCVSS v3 → 7.3 · CVSS v4 → 7.3 · severity → HIGH
- 2026-07-21 16:29 UTCEG score recompute
- 2026-07-21 16:28 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-15793?
CVE-2026-15793 is a high vulnerability published on July 21, 2026. BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.
When was CVE-2026-15793 disclosed?
CVE-2026-15793 was first published in the National Vulnerability Database on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15793 actively exploited?
CVE-2026-15793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15793?
CVE-2026-15793 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-15793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15793, 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-2026-15793
Is Your Infrastructure Affected by CVE-2026-15793?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.