CVE-2026-76139

HIGHPre-NVD 8.08.0—
EchelonGraph scoreHIGH confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. the CNA's CVSS baseline 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 4 sources updated this week
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.0Exploit: None knownExposed: 0

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

A flaw was found in acm-operator-bundle. The build process for this component downloads and runs a script from a remote source without verifying its authenticity or integrity. This script gains access to sensitive credentials, such as GitHub access tokens and registry passwords, used in the build environment. A remote attacker could exploit this vulnerability to inject malicious code, leading to unauthorized access to build resources and potential compromise of the resulting operator bundle.

CVSS v3
8.0
EG Score
8.0(high)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 20, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
Patch available. Sources: redhat.
redhat

2519852 – (CVE-2026-76139) CVE-2026-76139 acm-operator-bundle: acm-operator-bundle: Bundle build execs unpinned stolostron/release@master with full build credentials

https://bugzilla.redhat.com/show_bug.cgi?id=2519852
redhat Patch Available

CVE-2026-76139 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-76139

Vendor Advisories for CVE-2026-76139(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. 2026-08-21 04:38 UTCEG score recompute
  2. 2026-08-21 04:38 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 15:27 UTCEG score recompute
  5. 2026-08-20 15:27 UTCGHSA enrichment
  6. 2026-08-20 14:25 UTCEG score recompute
  7. 2026-08-20 14:25 UTCGHSA enrichment
  8. 2026-08-20 14:08 UTCEG score recompute
  9. 2026-08-20 14:08 UTCGHSA enrichment
  10. 2026-08-20 13:25 UTCGHSA enrichment
  11. 2026-08-20 10:26 UTCEG score recompute
  12. 2026-08-20 10:26 UTCGHSA enrichment
  13. 2026-08-19 21:19 UTCEG score recompute
  14. 2026-08-19 20:54 UTCEG score recompute
  15. 2026-08-19 20:52 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-76139?
CVE-2026-76139 is a high vulnerability published on August 19, 2026. A flaw was found in acm-operator-bundle. The build process for this component downloads and runs a script from a remote source without verifying its authenticity or integrity. This script gains access to sensitive credentials, such as GitHub access tokens and registry passwords, used in the build…
When was CVE-2026-76139 disclosed?
CVE-2026-76139 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76139 actively exploited?
CVE-2026-76139 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 74.2% of all scored CVEs.
What is the CVSS score of CVE-2026-76139?
CVE-2026-76139 has a CVSS v4.0 base score of 8.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-76139?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76139, 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

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