CVE-2026-65608

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 4 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling call_user_func_array() on attacker-influenced input, validating only that the target is callable (is_callable()) without restricting dangerous functions such as exec, system, passthru, or shell_exec. Because FlexDirectory registers this handler for every Flex directory, it bypasses the validation added to Blueprint::dynamicData() in 2.0.7 (GHSA-fj2p-qj2f-74v5). Any authenticated user with create or update permission on any Flex-based directory (Flex Users, Flex Pages, Flex Objects, or custom Flex types) can execute arbitrary shell commands on the server.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 24, 2026

Advisory Details (3)

Auto-updated Jul 23, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
generic

Grav before 2.0.9 Remote Code Execution via FlexDirectory | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-before-remote-code-execution-via-flexdirectory
github Patch Available🟡 PoC Available

FlexDirectory::dynamicDataField() executes arbitrary callables from blueprint data with no validation · Advisory · getgrav/grav · GitHub

Affected: 2.0.7. That fix added real validation to

https://github.com/getgrav/grav/security/advisories/GHSA-c4wf-2xxc-68qm
github_commit Patch Available

commit fae9e1bf2c40 (getgrav/grav)

Patch available: getgrav/grav 2.0.9 (contains commit fae9e1bf2c40)

https://github.com/getgrav/grav/commit/fae9e1bf2c40ce0b50d0dfce647aaa1d22f98969

Vendor Advisories for CVE-2026-65608(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 13× in last 7d / 13× 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. 2026-07-27 03:34 UTCGHSA enrichment
  2. 2026-07-26 15:22 UTCEG score recompute
  3. 2026-07-26 15:22 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 03:09 UTCEG score recompute
  7. 2026-07-26 03:09 UTCGHSA enrichment
  8. 2026-07-25 14:18 UTCEPSS rescore
  9. 2026-07-25 14:18 UTCEPSS rescore
  10. 2026-07-24 14:18 UTCEPSS rescore
  11. 2026-07-24 14:18 UTCEPSS rescore
  12. 2026-07-23 12:15 UTCEG score recompute
  13. 2026-07-23 12:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-65608?
CVE-2026-65608 is a high vulnerability published on July 23, 2026. Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling calluserfuncarray() on attacker-influenced input, validating only that the target is callable (iscallable()) without restricting…
When was CVE-2026-65608 disclosed?
CVE-2026-65608 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65608 actively exploited?
CVE-2026-65608 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.6% of all scored CVEs.
What is the CVSS score of CVE-2026-65608?
CVE-2026-65608 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-65608?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65608, 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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