Kiteworks Core did not apply its gateway-level API security controls to every request authenticated through the platform's central authentication service. An authenticated user could reach REST API functionality over a request path on which those controls, including enforcement of signed-out and revoked sessions, were not applied.
CVE-2026-102134
This medium-severity CVE scores 5.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (10th percentile of EPSS-scored CVEs). 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).
- Lower severity and no public exploit yet
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 5.4
- EG Score
- 5.4MEDIUMmedium confidence
- EG Risk
- 24EG Risk 24/100CISA SSVC
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 computedSeverity54% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix. - EPSS PROB
- 0.2%
- EPSS %ILE
- 10th
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 30, 2026
Last Modified
October 7, 2026
Advisory Details (1)
Auto-updated Sep 30, 2026[Core] Kiteworks Core before version 9.5.1 is vulnerable to Unprotected Alternate Channel · Advisory · kiteworks/security-advisories · GitHub
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-8q58-vrwm-jxhqWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 19× 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.
- 2026-10-09 20:06 UTCEPSS rescore
- 2026-10-09 18:50 UTCEG score recompute
- 2026-10-08 17:11 UTCEPSS rescore
- 2026-10-08 16:49 UTCEG score recompute
- 2026-10-07 23:47 UTCEPSS rescore
- 2026-10-07 00:32 UTCEG score recompute
- 2026-10-06 15:17 UTCEPSS rescore
- 2026-10-05 22:27 UTCEG score recompute
- 2026-10-05 17:42 UTCEPSS rescore
- 2026-10-04 23:21 UTCEPSS rescore
- 2026-10-03 18:26 UTCEG score recompute
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-02 16:23 UTCEG score recompute
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-10-01 14:22 UTCEG score recompute
- 2026-10-01 13:42 UTCEG score recompute
- 2026-09-30 21:27 UTCEG score recompute
- 2026-09-30 20:26 UTCEG score recompute
- 2026-09-30 20:25 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-102134?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-102134
Is Your Infrastructure Affected by CVE-2026-102134?
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