BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.2, a custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access BuildKit control API to issue builds, eg., bypass authentication, etc. This issue is fixed in version 0.31.2.
CVE-2026-75593
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-62839 (ENISA EUVD) · GHSA-wqjv-cjqw-p7p5 (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.2
- EG Score
- 7.2HIGHmedium confidence
- EG Risk
- 48EG Risk 48/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity72% × 45%Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.5% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.5%
- EPSS %ILE
- 45th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.2): severity, escalated by confirmed exploitation. This CVE's 7.2 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 19, 2026
Last Modified
September 9, 2026
Advisory Details (2)
Auto-updated Aug 19, 2026v0.31.2
Patch available: moby/buildkit v0.31.2
https://github.com/moby/buildkit/releases/tag/v0.31.2Malicious client can bypass destination directory validation on local sources upload · Advisory · moby/buildkit · GitHub
https://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976Vendor Advisories for CVE-2026-75593(10)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:84734Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
- RHSA-2026:69917Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Source To Image 1.6.4
- RHSA-2026:69255Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Quay 3.16.6
- RHSA-2026:66521Red Hat Product SecurityHigh
Red Hat Security Advisory: Logging for Red Hat OpenShift - 6.6.1
- RHSA-2026:66022Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift API for Data Protection
- CVE-2026-75593Microsoft Security Response Center (MSRC)High
BuildKit: Malicious client can bypass destination directory validation on local sources upload
- GHSA-wqjv-cjqw-p7p5GitHub Security AdvisoriesHigh
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive...
- RHSA-2026:52807Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- +2 more
Patch Availability(8)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rhoai/rhai-cli-rhel9:1791509689 | 2026-10-19 | redhat |
| redhat | source-to-image/source-to-image-rhel9:1790059977 | 2026-09-22 | redhat |
| redhat | quay/quay-rhel9:1789563753 | 2026-09-21 | redhat |
| redhat | openshift-logging/cluster-logging-rhel9-operator:1788439505 | 2026-09-10 | redhat |
| redhat | oadp/oadp-mustgather-rhel9:1788859896 | 2026-09-09 | redhat |
| redhat | podman-main-6.0.2-2.2.hum1 | 2026-08-10 | redhat |
| redhat | trivy-main-0.73.0-0.1.hum1 | 2026-08-06 | redhat |
| redhat | buildah-main-1.45.0-2.hum1 | 2026-08-06 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 66× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 281 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 181 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-28 12:37 UTCEG score recompute
- 2026-10-28 12:37 UTCVendor advisory
- 2026-10-28 12:37 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 45th percentile
- 2026-10-25 14:02 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-20 18:25 UTCEG score recompute
- 2026-10-20 18:25 UTCVendor advisory
- 2026-10-20 18:24 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-18 03:13 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 44th percentile
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- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-13 07:20 UTCEG score recompute
- 2026-10-13 07:20 UTCVendor advisory
- 2026-10-13 07:20 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-12 15:39 UTCEG score recompute
- 2026-10-11 19:24 UTCEG score recompute
- 2026-10-11 16:40 UTCEG score recompute
- 2026-10-11 13:59 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-08 07:29 UTCEG score recompute
- 2026-10-08 07:29 UTCVendor advisory
- 2026-10-08 07:29 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-07 07:43 UTCVendor advisory
- 2026-10-07 07:43 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-06 19:48 UTCEG score recompute
- 2026-10-06 19:48 UTCVendor advisory
- 2026-10-06 19:48 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-06 07:54 UTCEG score recompute
- 2026-10-06 07:54 UTCVendor advisory
- 2026-10-06 07:54 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-05 09:32 UTCEG score recompute
- 2026-10-05 09:32 UTCVendor advisory
- 2026-10-05 09:31 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-04 21:23 UTCVendor advisory
- 2026-10-04 21:23 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-04 05:07 UTCVendor advisory
- 2026-10-04 05:07 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-03 16:53 UTCEG score recompute
- 2026-10-03 16:53 UTCVendor advisory
- 2026-10-03 16:53 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-03 00:41 UTCEG score recompute
- 2026-10-03 00:41 UTCVendor advisory
- 2026-10-03 00:41 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-02 11:06 UTCVendor advisory
- 2026-10-02 11:06 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-01 22:45 UTCEG score recompute
- 2026-10-01 22:45 UTCVendor advisory
- 2026-10-01 22:45 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-10-01 08:27 UTCVendor advisory
- 2026-10-01 08:27 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-30 20:33 UTCEG score recompute
- 2026-09-30 20:33 UTCVendor advisory
- 2026-09-30 20:33 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-30 08:37 UTCEG score recompute
- 2026-09-30 08:37 UTCVendor advisory
- 2026-09-30 08:37 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-09-28 21:41 UTCEG score recompute
- 2026-09-28 21:41 UTCVendor advisory
- 2026-09-28 21:41 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-09-28 05:44 UTCVendor advisory
- 2026-09-28 05:44 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-27 17:51 UTCEG score recompute
- 2026-09-27 17:51 UTCVendor advisory
- 2026-09-27 17:50 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-09-27 05:57 UTCEG score recompute
- 2026-09-27 05:57 UTCVendor advisory
- 2026-09-27 05:57 UTCGHSA enrichmentGHSA-wqjv-cjqw-p7p5 · GitHub severity HIGH
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-09-25 12:41 UTCVendor advisory
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat:RHSA-2026:66022 · redhat:RHSA-2026:51065
Frequently asked(5)
What is CVE-2026-75593?
When was the CVE record for CVE-2026-75593 published?
Is CVE-2026-75593 actively exploited?
What is the CVSS score of CVE-2026-75593?
How do I remediate CVE-2026-75593?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-75593
Is Your Infrastructure Affected by CVE-2026-75593?
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