CVE-2026-88937

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 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.

knowns through 0.33.0 fails to properly validate template destination paths in the code generation template engine, allowing attackers to read and write arbitrary files outside the project root. Attackers can supply malicious templates that traverse directories to overwrite shell profiles, steal credentials, or achieve persistent code execution on victim systems.

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
49%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

Advisory Details (5)

Auto-updated Sep 10, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

knowns through 0.33.0 Path Traversal via Template Engine | Advisories | VulnCheck

https://www.vulncheck.com/advisories/knowns-through-0.33.0-path-traversal-via-template-engine
generic

knowns/internal/codegen/template_engine.go at v0.33.0 · knowns-dev/knowns · GitHub

https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/codegen/template_engine.go#L318-L344
generic

knowns/internal/codegen/template_engine.go at v0.33.0 · knowns-dev/knowns · GitHub

https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/codegen/template_engine.go#L625-L636
github Patch Available🟡 PoC Available

Malicious Git Import Overwrites Arbitrary Host Files and Achieves Persistent Remote Code Execution (RCE) · Advisory · knowns-dev/knowns · GitHub

https://github.com/knowns-dev/knowns/security/advisories/GHSA-xjcg-5j3r-m6f9
github Patch Available🟡 PoC Available

Arbitrary File Read/Write & Path Traversal to Remote Code Execution (RCE) via Malicious Codegen Templates · Advisory · knowns-dev/knowns · GitHub

https://github.com/knowns-dev/knowns/security/advisories/GHSA-68cq-4rwm-f7jr

Vendor Advisories for CVE-2026-88937(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 / 65× 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. 2026-09-25 06:58 UTCGHSA enrichment
  2. 2026-09-24 19:10 UTCEG score recompute
  3. 2026-09-24 19:10 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 07:22 UTCGHSA enrichment
  6. 2026-09-23 19:35 UTCEG score recompute
  7. 2026-09-23 19:35 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 07:27 UTCGHSA enrichment
  10. 2026-09-22 19:40 UTCEG score recompute
  11. 2026-09-22 19:40 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 07:52 UTCEG score recompute
  14. 2026-09-22 07:52 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 20:05 UTCGHSA enrichment
  17. 2026-09-21 08:17 UTCGHSA enrichment
  18. 2026-09-20 20:29 UTCEG score recompute
  19. 2026-09-20 20:29 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 08:42 UTCGHSA enrichment
  22. 2026-09-19 20:54 UTCEG score recompute
  23. 2026-09-19 20:54 UTCGHSA enrichment
  24. 2026-09-19 09:06 UTCGHSA enrichment
  25. 2026-09-18 21:19 UTCEG score recompute
Show 40 more
  1. 2026-09-18 21:19 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 08:38 UTCGHSA enrichment
  4. 2026-09-17 20:51 UTCEG score recompute
  5. 2026-09-17 20:51 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 09:03 UTCGHSA enrichment
  8. 2026-09-16 21:15 UTCEG score recompute
  9. 2026-09-16 21:15 UTCGHSA enrichment
  10. 2026-09-16 14:09 UTCEPSS rescore
  11. 2026-09-16 09:27 UTCEG score recompute
  12. 2026-09-16 09:27 UTCGHSA enrichment
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 21:39 UTCGHSA enrichment
  15. 2026-09-15 09:49 UTCEG score recompute
  16. 2026-09-15 09:49 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-14 22:01 UTCGHSA enrichment
  19. 2026-09-14 10:11 UTCGHSA enrichment
  20. 2026-09-13 22:23 UTCEG score recompute
  21. 2026-09-13 22:23 UTCGHSA enrichment
  22. 2026-09-13 16:48 UTCEPSS rescore
  23. 2026-09-13 10:36 UTCGHSA enrichment
  24. 2026-09-12 22:49 UTCEG score recompute
  25. 2026-09-12 22:49 UTCGHSA enrichment
  26. 2026-09-12 15:02 UTCEPSS rescore
  27. 2026-09-12 11:01 UTCGHSA enrichment
  28. 2026-09-11 23:11 UTCEG score recompute
  29. 2026-09-11 23:11 UTCGHSA enrichment
  30. 2026-09-11 14:53 UTCEPSS rescore
  31. 2026-09-11 14:53 UTCEPSS rescore
  32. 2026-09-11 11:18 UTCEG score recompute
  33. 2026-09-11 11:17 UTCGHSA enrichment
  34. 2026-09-11 07:51 UTCGHSA enrichment
  35. 2026-09-10 20:03 UTCEG score recompute
  36. 2026-09-10 20:03 UTCGHSA enrichment
  37. 2026-09-10 16:21 UTCEG score recompute
  38. 2026-09-10 16:10 UTCEG score recompute
  39. 2026-09-10 15:40 UTCEG score recompute
  40. 2026-09-10 15:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88937?
CVE-2026-88937 is a high vulnerability published on September 10, 2026. knowns through 0.33.0 fails to properly validate template destination paths in the code generation template engine, allowing attackers to read and write arbitrary files outside the project root. Attackers can supply malicious templates that traverse directories to overwrite shell profiles, steal…
When was CVE-2026-88937 disclosed?
CVE-2026-88937 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88937 actively exploited?
CVE-2026-88937 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 51.0% of all scored CVEs.
What is the CVSS score of CVE-2026-88937?
CVE-2026-88937 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-88937?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88937, 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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