CVE-2026-53988

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-29. A secondary CVSS source baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 10.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Dockhand before 1.0.40 contains an authentication bypass vulnerability in its git webhook endpoints that allows unauthenticated remote attackers to trigger arbitrary stack redeployments by exploiting a null webhook secret guard condition. Attackers can enumerate sequential stack IDs and send unsigned webhook requests to force git clone and docker compose operations, enabling denial of service or, when combined with write access to the tracked git branch, container escape and full host compromise via attacker-controlled docker-compose.yml with privileged bind mounts.

CVSS v3
10.0
EG Score
10.0CRITICALhigh confidence
EG Risk
45
EG Risk 45/100CISA 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
Severity100% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
37th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

September 29, 2026

Last Modified

October 2, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Patch available. Sources: github_release.
generic

Dockhand < 1.0.40 Unauthenticated Webhook Trigger via Git Webhook Endpoints | Advisories | VulnCheck

https://www.vulncheck.com/advisories/dockhand-unauthenticated-webhook-trigger-via-git-webhook-endpoints
github_release Patch Available

v1.0.40

Patch available: Finsys/dockhand v1.0.40

https://github.com/Finsys/dockhand/releases/tag/v1.0.40

Vendor Advisories for CVE-2026-53988(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 46× in last 7d / 46× 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. 2026-10-04 10:22 UTCGHSA enrichment
  2. 2026-10-04 06:37 UTCGHSA enrichment
  3. 2026-10-04 02:52 UTCGHSA enrichment
  4. 2026-10-03 23:07 UTCGHSA enrichment
  5. 2026-10-03 19:17 UTCGHSA enrichment
  6. 2026-10-03 15:33 UTCEG score recompute
  7. 2026-10-03 15:33 UTCGHSA enrichment
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-03 11:48 UTCGHSA enrichment
  10. 2026-10-03 08:03 UTCGHSA enrichment
  11. 2026-10-03 04:18 UTCGHSA enrichment
  12. 2026-10-03 00:33 UTCGHSA enrichment
  13. 2026-10-02 20:48 UTCEG score recompute
  14. 2026-10-02 20:48 UTCGHSA enrichment
  15. 2026-10-02 17:56 UTCEPSS rescore
  16. 2026-10-02 17:03 UTCGHSA enrichment
  17. 2026-10-02 13:18 UTCEG score recompute
  18. 2026-10-02 13:18 UTCGHSA enrichment
  19. 2026-10-02 12:46 UTCEG score recompute
  20. 2026-10-02 12:46 UTCGHSA enrichment
  21. 2026-10-02 11:16 UTCGHSA enrichment
  22. 2026-10-02 07:31 UTCGHSA enrichment
  23. 2026-10-02 03:47 UTCGHSA enrichment
  24. 2026-10-02 00:01 UTCGHSA enrichment
  25. 2026-10-01 20:02 UTCEG score recompute
Show 21 more
  1. 2026-10-01 20:02 UTCGHSA enrichment
  2. 2026-10-01 19:50 UTCEPSS rescore
  3. 2026-10-01 16:17 UTCGHSA enrichment
  4. 2026-10-01 12:32 UTCGHSA enrichment
  5. 2026-10-01 08:48 UTCGHSA enrichment
  6. 2026-10-01 05:03 UTCGHSA enrichment
  7. 2026-10-01 01:19 UTCGHSA enrichment
  8. 2026-09-30 21:34 UTCGHSA enrichment
  9. 2026-09-30 17:45 UTCGHSA enrichment
  10. 2026-09-30 15:13 UTCEG score recompute
  11. 2026-09-30 15:13 UTCGHSA enrichment
  12. 2026-09-30 15:03 UTCEPSS rescore
  13. 2026-09-30 11:28 UTCGHSA enrichment
  14. 2026-09-30 07:43 UTCGHSA enrichment
  15. 2026-09-30 03:56 UTCGHSA enrichment
  16. 2026-09-30 00:11 UTCEG score recompute
  17. 2026-09-30 00:11 UTCGHSA enrichment
  18. 2026-09-30 00:09 UTCGHSA enrichment
  19. 2026-09-29 20:22 UTCEG score recompute
  20. 2026-09-29 20:03 UTCEG score recompute
  21. 2026-09-29 20:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53988?
CVE-2026-53988 is a critical vulnerability published on September 29, 2026. Dockhand before 1.0.40 contains an authentication bypass vulnerability in its git webhook endpoints that allows unauthenticated remote attackers to trigger arbitrary stack redeployments by exploiting a null webhook secret guard condition. Attackers can enumerate sequential stack IDs and send…
When was CVE-2026-53988 disclosed?
CVE-2026-53988 was first published on September 29, 2026, with the most recent update on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53988 actively exploited?
CVE-2026-53988 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53988?
CVE-2026-53988 has a CVSS base score of 10.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53988?
A fix for CVE-2026-53988 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53988 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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