CVE-2026-74790

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-16. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

Scriban before 7.0.0 caches TypedObjectAccessor by Type only without considering MemberFilter changes, allowing reused TemplateContext instances to expose members that should be hidden. Attackers can access filtered properties and fields by reusing a TemplateContext after tightening its MemberFilter, bypassing sandbox policies across requests or tenants.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 16, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Scriban before 7.0.0 MemberFilter Bypass via TemplateContext Cache | Advisories | VulnCheck

https://www.vulncheck.com/advisories/scriban-before-memberfilter-bypass-via-templatecontext-cache
github Patch Available🟡 PoC Available

TypedObjectAccessor cache bypasses MemberFilter after TemplateContext reuse, leading to sandbox escape · Advisory · scriban/scriban · GitHub

https://github.com/scriban/scriban/security/advisories/GHSA-5wr9-m6jw-xx44

Vendor Advisories for CVE-2026-74790(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 1 ecosystem)
NuGet(2)
PackageVulnerable rangeFixed inDependents
scriban0.1.0 ... 6.6.0 (123 versions)7.0.0—
Scriban.Signed0.10.0 ... 6.6.0 (111 versions)7.0.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 45× in last 7d / 45× 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 06:44 UTCGHSA enrichment
  2. 2026-08-21 02:50 UTCEG score recompute
  3. 2026-08-21 02:49 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:54 UTCGHSA enrichment
  6. 2026-08-20 19:01 UTCGHSA enrichment
  7. 2026-08-20 15:07 UTCGHSA enrichment
  8. 2026-08-20 11:05 UTCGHSA enrichment
  9. 2026-08-20 07:11 UTCGHSA enrichment
  10. 2026-08-20 03:17 UTCGHSA enrichment
  11. 2026-08-19 23:21 UTCGHSA enrichment
  12. 2026-08-19 19:27 UTCEG score recompute
  13. 2026-08-19 19:27 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 15:33 UTCGHSA enrichment
  16. 2026-08-19 11:30 UTCGHSA enrichment
  17. 2026-08-19 07:34 UTCGHSA enrichment
  18. 2026-08-19 03:40 UTCGHSA enrichment
  19. 2026-08-18 23:45 UTCGHSA enrichment
  20. 2026-08-18 19:52 UTCGHSA enrichment
  21. 2026-08-18 15:58 UTCEG score recompute
  22. 2026-08-18 15:58 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 12:04 UTCGHSA enrichment
Show 20 more
  1. 2026-08-18 08:05 UTCGHSA enrichment
  2. 2026-08-18 04:08 UTCGHSA enrichment
  3. 2026-08-18 00:14 UTCGHSA enrichment
  4. 2026-08-17 20:18 UTCGHSA enrichment
  5. 2026-08-17 16:24 UTCEG score recompute
  6. 2026-08-17 16:24 UTCGHSA enrichment
  7. 2026-08-17 16:11 UTCEG score recompute
  8. 2026-08-17 16:11 UTCGHSA enrichment
  9. 2026-08-17 13:58 UTCEG score recompute
  10. 2026-08-17 13:58 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 10:04 UTCGHSA enrichment
  13. 2026-08-17 06:11 UTCGHSA enrichment
  14. 2026-08-17 02:18 UTCGHSA enrichment
  15. 2026-08-16 22:24 UTCGHSA enrichment
  16. 2026-08-16 18:30 UTCEG score recompute
  17. 2026-08-16 18:30 UTCGHSA enrichment
  18. 2026-08-16 14:36 UTCEG score recompute
  19. 2026-08-16 13:27 UTCEG score recompute
  20. 2026-08-16 13:26 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74790?
CVE-2026-74790 is a critical vulnerability published on August 16, 2026. Scriban before 7.0.0 caches TypedObjectAccessor by Type only without considering MemberFilter changes, allowing reused TemplateContext instances to expose members that should be hidden. Attackers can access filtered properties and fields by reusing a TemplateContext after tightening its…
When was CVE-2026-74790 disclosed?
CVE-2026-74790 was first published in the National Vulnerability Database on August 16, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74790 actively exploited?
CVE-2026-74790 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 78.8% of all scored CVEs.
What is the CVSS score of CVE-2026-74790?
CVE-2026-74790 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-74790?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74790, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-74790

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