CVE-2026-56004

CRITICALPre-NVD 10.08.8▼
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-02. a secondary CVSS source baseline 10.0; sources differ by 1.2.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 10.0Exploit: NoneExposed: 0

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

A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by attackers able to provide a _service file to execute code as the source service or the local user checking out the malicious services

CVSS v3
10.0
EG Score
8.8(medium)
EPSS
29.5%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 2, 2026

Advisory Details (1)

Auto-updated Jul 3, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

improve option sanitising revision/url

Fix merged in openSUSE/obs-service-tar_scm PR #552 on 2026-07-01 — awaiting tagged release

https://github.com/openSUSE/obs-service-tar_scm/pull/552/changes/bcf29d318c671c45fe87dd9f995a4a0c78ecedd7

Vendor Advisories for CVE-2026-56004(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 27× in last 7d / 27× 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. 2026-07-07 00:46 UTCEG score recompute
  2. 2026-07-07 00:46 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 11:44 UTCEG score recompute
  6. 2026-07-06 11:44 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 22:41 UTCEG score recompute
  10. 2026-07-05 22:41 UTCGHSA enrichment
  11. 2026-07-05 09:39 UTCEG score recompute
  12. 2026-07-05 09:39 UTCGHSA enrichment
  13. 2026-07-05 02:31 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-04 20:36 UTCEG score recompute
  16. 2026-07-04 20:36 UTCGHSA enrichment
  17. 2026-07-04 07:34 UTCEG score recompute
  18. 2026-07-04 07:33 UTCGHSA enrichment
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-03 18:30 UTCEG score recompute
  22. 2026-07-03 18:30 UTCGHSA enrichment
  23. 2026-07-03 05:28 UTCEG score recompute
  24. 2026-07-03 05:28 UTCGHSA enrichment
  25. 2026-07-02 16:58 UTCNVD updateCVSS v3 → 10 · severity → CRITICAL
Show 2 more
  1. 2026-07-02 16:23 UTCEG score recompute
  2. 2026-07-02 16:23 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56004?
CVE-2026-56004 is a critical vulnerability published on July 2, 2026. A shellcode injection in the mercurial handler of the obs tarscm source service before version 0.12.4 could be used by attackers able to provide a service file to execute code as the source service or the local user checking out the malicious services
When was CVE-2026-56004 disclosed?
CVE-2026-56004 was first published in the National Vulnerability Database on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56004 actively exploited?
CVE-2026-56004 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56004?
CVE-2026-56004 has a CVSS v3 base score of 10.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8.
How do I remediate CVE-2026-56004?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56004, 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-2026-56004

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