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
CVE-2026-56004
This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 10.0
- EG Score
- 10.0(medium)
- EG Risk
- 50(Track)EG Risk 50/100SSVC: 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 computedSeverity100% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 30%
- KEV
- Not listed
Published
July 2, 2026
Last Modified
July 2, 2026
Advisory Details (1)
Auto-updated Jul 25, 2026improve 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/bcf29d318c671c45fe87dd9f995a4a0c78ecedd7Vendor 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 33× in last 7d / 94× 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.
- 2026-07-30 02:09 UTCEG score recompute
- 2026-07-30 02:08 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
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- 2026-07-29 21:48 UTCGHSA enrichment
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- 2026-07-28 22:38 UTCGHSA enrichment
- 2026-07-28 18:08 UTCEG score recompute
- 2026-07-28 18:08 UTCGHSA enrichment
- 2026-07-28 15:37 UTCEPSS rescore
- 2026-07-28 13:47 UTCGHSA enrichment
- 2026-07-28 09:27 UTCGHSA enrichment
- 2026-07-28 05:07 UTCGHSA enrichment
- 2026-07-28 00:47 UTCGHSA enrichment
- 2026-07-27 20:13 UTCGHSA enrichment
- 2026-07-27 15:52 UTCEG score recompute
- 2026-07-27 15:52 UTCGHSA enrichment
- 2026-07-27 11:03 UTCGHSA enrichment
- 2026-07-27 06:41 UTCGHSA enrichment
- 2026-07-27 02:20 UTCGHSA enrichment
- 2026-07-26 21:58 UTCGHSA enrichment
- 2026-07-26 17:38 UTCEG score recompute
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- 2026-07-26 17:37 UTCGHSA enrichment
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 13:05 UTCEG score recompute
- 2026-07-26 13:05 UTCGHSA enrichment
- 2026-07-25 14:18 UTCEPSS rescore
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- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:20 UTCEG score recompute▲ 1.20
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-16 19:56 UTCGHSA enrichment
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- 2026-07-16 06:53 UTCGHSA enrichment
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- 2026-07-11 22:14 UTCGHSA enrichment
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- 2026-07-09 19:10 UTCEPSS rescore
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- 2026-07-09 18:02 UTCGHSA enrichment
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- 2026-07-08 15:55 UTCGHSA enrichment
- 2026-07-08 15:16 UTCEPSS rescore
- 2026-07-08 15:16 UTCEPSS rescore
- 2026-07-08 02:52 UTCGHSA enrichment
- 2026-07-07 13:50 UTCGHSA enrichment
- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-07-07 00:46 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-07-06 11:44 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 22:41 UTCGHSA enrichment
- 2026-07-05 09:39 UTCGHSA enrichment
- 2026-07-05 02:31 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 20:36 UTCGHSA enrichment
- 2026-07-04 07:33 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 18:30 UTCGHSA enrichment
- 2026-07-03 05:28 UTCGHSA enrichment
- 2026-07-02 16:58 UTCNVD updateCVSS v3 → 10 · severity → CRITICAL
- 2026-07-02 16:23 UTCEG score recompute
- 2026-07-02 16:23 UTCGHSA enrichment
Related CVEs(same CWE)
Same CWE
10 shownCWE-78
- CVE-2009-20011EG 10.0CRITICAL
- CVE-2011-10017EG 10.0CRITICAL
- CVE-2012-1166EG 10.0EPSS p91HIGH
- CVE-2012-2976EG 10.0EPSS p92HIGH
- CVE-2012-2953EG 10.0EPSS p99HIGH
- CVE-2011-4502EG 10.0EPSS p92HIGH
- CVE-2011-2148EG 10.0EPSS p92HIGH
- CVE-2011-0382EG 10.0EPSS p90HIGH
- CVE-2011-0381EG 10.0EPSS p92HIGH
- CVE-2011-0372EG 10.0HIGH
Frequently asked(5)
What is CVE-2026-56004?
When was CVE-2026-56004 disclosed?
Is CVE-2026-56004 actively exploited?
What is the CVSS score of CVE-2026-56004?
How do I remediate CVE-2026-56004?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-56004
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