CVE-2026-86590

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 69% 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
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

In Eclipse Che versions 7.79.0 through 7.121.0, the dashboard backend's POST /dashboard/api/data/resolver endpoint passes a caller-supplied URL directly to an outbound HTTP GET request with no host filtering. An authenticated user can exploit this server-side request forgery (SSRF) to read responses from internal network addresses, including the cloud instance metadata service (169.254.169.254), loopback interfaces, RFC-1918 private ranges, and in-cluster Kubernetes services. The operator-configured allowlist (spec.devEnvironments.allowedSources.urls) is not consulted. The vulnerability is fixed in version 7.122.0, which adds private-address blocking, IPv4-mapped IPv6 bypass prevention, operator allowlist enforcement, and disables HTTP redirects on the outbound request.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

fix(security): block SSRF in data resolver route

Fix merged in eclipse-che/che-dashboard PR #1655 on 2026-08-31 — awaiting tagged release

https://github.com/eclipse-che/che-dashboard/pull/1655
generic

[Eclipse Che] Full-read SSRF in `/dashboard/api/data/resolver` (#617) · Issues · Eclipse Projects Security / vulnerability-reports · GitLab

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/617

Vendor Advisories for CVE-2026-86590(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 20× in last 7d / 43× 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. 2026-09-20 22:23 UTCEG score recompute
  2. 2026-09-20 22:23 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-19 23:37 UTCEG score recompute
  5. 2026-09-19 23:37 UTCGHSA enrichment
  6. 2026-09-19 00:52 UTCEG score recompute
  7. 2026-09-19 00:52 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 02:07 UTCEG score recompute
  10. 2026-09-18 02:07 UTCGHSA enrichment
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-17 03:22 UTCEG score recompute
  13. 2026-09-17 03:22 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-16 04:37 UTCGHSA enrichment
  17. 2026-09-15 05:52 UTCEG score recompute
  18. 2026-09-15 05:52 UTCGHSA enrichment
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-14 07:07 UTCEG score recompute
  22. 2026-09-14 07:07 UTCGHSA enrichment
  23. 2026-09-13 08:22 UTCEG score recompute
  24. 2026-09-13 08:22 UTCGHSA enrichment
  25. 2026-09-12 09:38 UTCEG score recompute
Show 18 more
  1. 2026-09-12 09:38 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 10:53 UTCEG score recompute
  5. 2026-09-11 10:53 UTCGHSA enrichment
  6. 2026-09-10 12:08 UTCEG score recompute
  7. 2026-09-10 12:08 UTCGHSA enrichment
  8. 2026-09-09 13:23 UTCEG score recompute
  9. 2026-09-09 13:23 UTCGHSA enrichment
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-08 14:33 UTCGHSA enrichment
  12. 2026-09-08 13:38 UTCEG score recompute
  13. 2026-09-08 13:37 UTCGHSA enrichment
  14. 2026-09-08 12:35 UTCEG score recompute
  15. 2026-09-08 12:35 UTCGHSA enrichment
  16. 2026-09-08 10:42 UTCEG score recompute
  17. 2026-09-08 09:29 UTCEG score recompute
  18. 2026-09-08 09:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86590?
CVE-2026-86590 is a medium vulnerability published on September 8, 2026. In Eclipse Che versions 7.79.0 through 7.121.0, the dashboard backend's POST /dashboard/api/data/resolver endpoint passes a caller-supplied URL directly to an outbound HTTP GET request with no host filtering. An authenticated user can exploit this server-side request forgery (SSRF) to read…
When was CVE-2026-86590 disclosed?
CVE-2026-86590 was first published in the National Vulnerability Database on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86590 actively exploited?
CVE-2026-86590 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 69.1% of all scored CVEs.
What is the CVSS score of CVE-2026-86590?
CVE-2026-86590 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-86590?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86590, 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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