CVE-2026-93315

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: <0.1% (below the 1st percentile of EPSS-scored CVEs). 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
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 5.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.

CVSS v3
5.8
EG Score
5.8MEDIUMmedium confidence
EG Risk
26
EG Risk 26/100CISA SSVC

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
Severity58% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 5, 2026

Last Modified

October 6, 2026

Advisory Details (2)

Auto-updated Oct 5, 2026
Patch available. Sources: github_release, github.
github_release Patch Available

v0.33.1

Patch available: moby/buildkit v0.33.1

https://github.com/moby/buildkit/releases/tag/v0.33.1
githubMentions a patch (unverified)

BuildKit proxy CA cleanup can be disrupted by build steps · Advisory · moby/buildkit · GitHub

https://github.com/moby/buildkit/security/advisories/GHSA-2f5p-x9ph-g97x

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 7× 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. 2026-10-06 15:32 UTCEG score recompute
  2. 2026-10-06 15:19 UTCEPSS rescore
  3. 2026-10-06 14:31 UTCEG score recompute
  4. 2026-10-06 13:40 UTCEG score recompute
  5. 2026-10-05 22:20 UTCEG score recompute
  6. 2026-10-05 22:01 UTCEG score recompute
  7. 2026-10-05 22:00 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-93315?
CVE-2026-93315 is a medium vulnerability published on October 5, 2026. When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.
When was CVE-2026-93315 disclosed?
CVE-2026-93315 was first published on October 5, 2026, with the most recent update on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93315 actively exploited?
CVE-2026-93315 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93315?
CVE-2026-93315 has a CVSS base score of 5.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-93315?
A fix for CVE-2026-93315 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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