BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, a custom frontend could place an invalid SecurityMode value in a crafted build request, and executor/oci/spec_linux.go treated the unsupported value as a non-sandbox mode without requiring the security.insecure entitlement. This disabled Seccomp and AppArmor protections for the build container even though Linux capabilities remained restricted. This issue is fixed in version 0.31.1.
CVE-2026-61711
This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(low)
- EG Risk
- 24(Track)EG Risk 24/100SSVC: 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 computedSeverity53% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 29%
- KEV
- Not listed
Published
August 19, 2026
Last Modified
August 20, 2026
Advisory Details (4)
Auto-updated Aug 19, 2026v0.31.1
Patch available: moby/buildkit v0.31.1
https://github.com/moby/buildkit/releases/tag/v0.31.1commit 64bbec89ca43 (moby/buildkit)
Fix landed in moby/buildkit commit 64bbec89ca43 — awaiting tagged release
https://github.com/moby/buildkit/commit/64bbec89ca43dd95b2853edeca240c33c6729910commit 3ea6dd0ce7d2 (moby/buildkit)
Fix landed in moby/buildkit commit 3ea6dd0ce7d2 — awaiting tagged release
https://github.com/moby/buildkit/commit/3ea6dd0ce7d269cdb8aa23348718e2c1bf64f109Custom frontend could bypass Seccomp/AppArmor · Advisory · moby/buildkit · GitHub
Affected: versions v0.31.1+
https://github.com/moby/buildkit/security/advisories/GHSA-7236-3392-c5c6Vendor Advisories for CVE-2026-61711(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/moby/buildkit | — | 0.31.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 6× 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.
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 14:25 UTCEG score recompute
- 2026-08-20 13:33 UTCEG score recompute
- 2026-08-19 20:19 UTCEG score recompute
- 2026-08-19 20:13 UTCEG score recompute
- 2026-08-19 20:12 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-20
- CVE-2005-0050EG 10.0EPSS p99HIGH
- CVE-2004-1019EG 10.0EPSS p94HIGH
- CVE-2004-0840EG 10.0EPSS p98HIGH
- CVE-2003-1425EG 10.0EPSS p96HIGH
- CVE-2003-1487EG 10.0EPSS p94HIGH
- CVE-2002-1874EG 10.0HIGH
- CVE-2002-2236EG 10.0EPSS p91HIGH
- CVE-2002-2365EG 10.0HIGH
- CVE-2002-1358EG 10.0EPSS p93HIGH
- CVE-2002-1359EG 10.0EPSS p100HIGH
Frequently asked(5)
What is CVE-2026-61711?
When was CVE-2026-61711 disclosed?
Is CVE-2026-61711 actively exploited?
What is the CVSS score of CVE-2026-61711?
How do I remediate CVE-2026-61711?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-61711
Is Your Infrastructure Affected by CVE-2026-61711?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.