CVE-2026-85021

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-09-03. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

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

A vulnerability was determined in langgenius dify 1.13.0. Affected is the function router.replace of the file web/app/(shareLayout)/components/splash.tsx of the component Splash Layout. This manipulation of the argument redirect_url causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 3, 2026

Advisory Details (3)

Auto-updated Sep 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - langgenius/dify: Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack. · GitHub

https://github.com/langgenius/dify/
generic🟡 PoC Available

cvd_dify_vuln1_20260705.md · GitHub

https://gist.github.com/TrebledJ/0e8466e5c39a6fb7dca8a3acdfbe2ddc#file-cvd_dify_vuln1_20260705-md
generic

huntr - The world's first bug bounty platform for AI/ML

https://huntr.com/bounties/8ff349b3-db5f-4b56-9ccf-a19abd96e30f

Vendor Advisories for CVE-2026-85021(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 66× 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 08:48 UTCEG score recompute
  2. 2026-09-25 08:48 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 07:04 UTCEG score recompute
  5. 2026-09-24 07:04 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 05:19 UTCEG score recompute
  8. 2026-09-23 05:19 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 03:34 UTCEG score recompute
  11. 2026-09-22 03:34 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 01:50 UTCEG score recompute
  14. 2026-09-21 01:50 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 00:05 UTCEG score recompute
  17. 2026-09-20 00:05 UTCGHSA enrichment
  18. 2026-09-18 22:21 UTCEG score recompute
  19. 2026-09-18 22:21 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-17 20:37 UTCEG score recompute
  22. 2026-09-17 20:37 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-16 14:39 UTCEG score recompute
  25. 2026-09-16 14:39 UTCGHSA enrichment
Show 41 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-15 12:53 UTCEG score recompute
  4. 2026-09-15 12:53 UTCGHSA enrichment
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-14 11:08 UTCEG score recompute
  8. 2026-09-14 11:08 UTCGHSA enrichment
  9. 2026-09-13 09:24 UTCEG score recompute
  10. 2026-09-13 09:24 UTCGHSA enrichment
  11. 2026-09-12 07:40 UTCEG score recompute
  12. 2026-09-12 07:39 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 05:54 UTCEG score recompute
  16. 2026-09-11 05:54 UTCGHSA enrichment
  17. 2026-09-10 04:09 UTCGHSA enrichment
  18. 2026-09-09 02:25 UTCEG score recompute
  19. 2026-09-09 02:25 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 00:39 UTCEG score recompute
  22. 2026-09-08 00:39 UTCGHSA enrichment
  23. 2026-09-06 22:54 UTCEG score recompute
  24. 2026-09-06 22:54 UTCGHSA enrichment
  25. 2026-09-06 13:48 UTCEPSS rescore
  26. 2026-09-05 21:10 UTCEG score recompute
  27. 2026-09-05 21:10 UTCGHSA enrichment
  28. 2026-09-05 15:31 UTCEPSS rescore
  29. 2026-09-04 19:26 UTCEG score recompute
  30. 2026-09-04 19:26 UTCGHSA enrichment
  31. 2026-09-04 05:07 UTCEPSS rescore
  32. 2026-09-03 17:39 UTCGHSA enrichment
  33. 2026-09-03 16:33 UTCEG score recompute
  34. 2026-09-03 16:33 UTCGHSA enrichment
  35. 2026-09-03 16:32 UTCNVD updateCVSS v4 → 2.1
  36. 2026-09-03 15:26 UTCEG score recompute
  37. 2026-09-03 15:23 UTCMITRE cvelistV5CVSS v4 → 5.3
  38. 2026-09-03 13:15 UTCEG score recompute
  39. 2026-09-03 13:13 UTCNVD updateCVSS v4 → 2.1
  40. 2026-09-03 01:09 UTCEG score recompute
  41. 2026-09-03 01:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85021?
CVE-2026-85021 is a medium vulnerability published on September 3, 2026. A vulnerability was determined in langgenius dify 1.13.0. Affected is the function router.replace of the file web/app/(shareLayout)/components/splash.tsx of the component Splash Layout. This manipulation of the argument redirect_url causes cross site scripting. The attack is possible to be carried…
When was CVE-2026-85021 disclosed?
CVE-2026-85021 was first published in the National Vulnerability Database on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85021 actively exploited?
CVE-2026-85021 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 60.0% of all scored CVEs.
What is the CVSS score of CVE-2026-85021?
CVE-2026-85021 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-85021?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85021, 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

Explore the affected products and dependency analysis for CVE-2026-85021

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