CVE-2026-78122

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-23. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary files and download entire container filesystems as tar archives.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 22, 2026

Advisory Details (6)

Auto-updated Aug 22, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: github_pr.
generic

docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems | Advisories | VulnCheck

https://www.vulncheck.com/advisories/docker-socket-proxy-through-insufficient-access-control-granularity-exposes-container-filesystems
generic🟡 PoC Available

CONTAINERS=1 grants unintended filesystem read access to all containers in docker-socket-proxy · GitHub

https://gist.github.com/nedlir/e4f52f88a757f02c67db1fd5dd70d732
github_pr

Fix: Prevent filesystem exposure when CONTAINERS=1

Upstream fix in progress (PR #183 · Tecnativa/docker-socket-proxy, state=open)

https://github.com/Tecnativa/docker-socket-proxy/pull/183
generic

docker-socket-proxy/haproxy.cfg at v0.5.0 · Tecnativa/docker-socket-proxy · GitHub

https://github.com/Tecnativa/docker-socket-proxy/blob/v0.5.0/haproxy.cfg#L49-L61
generic

GitHub - Tecnativa/docker-socket-proxy: Proxy over your Docker socket to restrict which requests it accepts · GitHub

https://github.com/Tecnativa/docker-socket-proxy
generic🟡 PoC Available

CONTAINERS=1 grants unintended filesystem read access to all containers · Issue #182 · Tecnativa/docker-socket-proxy · GitHub

https://github.com/Tecnativa/docker-socket-proxy/issues/182

Vendor Advisories for CVE-2026-78122(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 15× 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. 2026-08-25 23:31 UTCEG score recompute
  2. 2026-08-25 23:31 UTCGHSA enrichment
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-25 11:30 UTCGHSA enrichment
  5. 2026-08-24 23:29 UTCEG score recompute
  6. 2026-08-24 23:29 UTCGHSA enrichment
  7. 2026-08-24 14:18 UTCEPSS rescore
  8. 2026-08-24 11:27 UTCEG score recompute
  9. 2026-08-24 11:27 UTCGHSA enrichment
  10. 2026-08-23 23:25 UTCGHSA enrichment
  11. 2026-08-23 11:24 UTCEG score recompute
  12. 2026-08-23 11:24 UTCGHSA enrichment
  13. 2026-08-22 23:23 UTCEG score recompute
  14. 2026-08-22 23:11 UTCEG score recompute
  15. 2026-08-22 23:10 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78122?
CVE-2026-78122 is a high vulnerability published on August 22, 2026. docker-socket-proxy fails to properly gate read endpoints in the /containers Docker API namespace when the CONTAINERS environment variable is set. Attackers can use GET requests to /containers/{id}/archive, /containers/{id}/export, /containers/{id}/logs, and /containers/{id}/top to read arbitrary…
When was CVE-2026-78122 disclosed?
CVE-2026-78122 was first published in the National Vulnerability Database on August 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78122 actively exploited?
CVE-2026-78122 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 75.5% of all scored CVEs.
What is the CVSS score of CVE-2026-78122?
CVE-2026-78122 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-78122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78122, 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-2026-78122

Explore →

Is Your Infrastructure Affected by CVE-2026-78122?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs