CVE-2026-55212

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 90% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

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

Pimcore is an Open Source Data & Experience Management Platform. Prior to 2025.4.6 and 2026.1.6, the Studio API class definition creation endpoint POST /pimcore-studio/api/class/definition/configuration-view/detail/create is guarded by the objects permission instead of the classes permission, allowing a standard editor-level user to create class definitions without admin privileges. Class definition creation generates new database tables and PHP class files on the server, and missing API-layer UID format validation allows malformed UIDs to reach model-layer validation and return internal exceptions. This issue is fixed in versions 2025.4.6 and 2026.1.6.

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
9.9%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (5)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github_release, github, github_commit.
github_release Patch Available

2026.1.6

Patch available: pimcore/studio-backend-bundle v2026.1.6

https://github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6
github_release Patch Available

2025.4.6

Patch available: pimcore/studio-backend-bundle v2025.4.6

https://github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6
github_pr Patch Available

[Bug] [User Permissions] Update access control for class definition routes

Patch available: pimcore/studio-backend-bundle v2025.4.6 (PR #1886 merged 2026-06-11)

https://github.com/pimcore/studio-backend-bundle/pull/1886
github_commit Patch Available

commit d1a4788c0f15 (pimcore/studio-backend-bundle)

Patch available: pimcore/studio-backend-bundle v2025.4.6 (contains commit d1a4788c0f15)

https://github.com/pimcore/studio-backend-bundle/commit/d1a4788c0f159c360d550c34256c8abbbd633ae0
github Patch Available🟡 PoC Available

Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation · Advisory · pimcore/pimcore · GitHub

https://github.com/pimcore/pimcore/security/advisories/GHSA-f97c-ph8j-8vff

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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. 2026-07-12 13:23 UTCEG score recompute
  2. 2026-07-12 05:46 UTCEPSS rescore
  3. 2026-07-12 00:31 UTCEG score recompute
  4. 2026-07-11 11:40 UTCEG score recompute
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-10 22:48 UTCEG score recompute
  8. 2026-07-10 09:57 UTCEG score recompute
  9. 2026-07-09 21:05 UTCEG score recompute
  10. 2026-07-09 21:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55212?
CVE-2026-55212 is a high vulnerability published on July 9, 2026. Pimcore is an Open Source Data & Experience Management Platform. Prior to 2025.4.6 and 2026.1.6, the Studio API class definition creation endpoint POST /pimcore-studio/api/class/definition/configuration-view/detail/create is guarded by the objects permission instead of the classes permission,…
When was CVE-2026-55212 disclosed?
CVE-2026-55212 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55212 actively exploited?
CVE-2026-55212 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-55212?
CVE-2026-55212 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-55212?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55212, 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.

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