CVE-2026-101056

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-27. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Cloudreve before 4.16.1 fails to revalidate share access when restoring cached navigator state from a context_hint UUID. Attackers who previously had valid share access can replay the cached hint to generate signed file URLs for up to 300 seconds after the share is deleted, expires, or reaches zero remaining downloads.

CVSS v3
5.3
EG Score
5.3MEDIUMhigh confidence
EG Risk
55
EG Risk 55/100CISA 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 computed
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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 27, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 27, 2026
Patch available. Sources: github.
generic

Cloudreve before 4.16.1 Authentication Bypass via Cached Context Hint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cloudreve-before-4.16.1-authentication-bypass-via-cached-context-hint
github Patch Available

Broken Access Control - Revoked Share Access Still Allows Signed File URL Generation via Cached context_hint · Advisory · cloudreve/cloudreve · GitHub

https://github.com/cloudreve/cloudreve/security/advisories/GHSA-vx2m-jpxr-xv7w

Vendor Advisories for CVE-2026-101056(1)

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

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/cloudreve/Cloudreve———
github.com/cloudreve/Cloudreve/v3———
github.com/cloudreve/Cloudreve/v4———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 24× 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. 2026-10-04 01:10 UTCEG score recompute
  2. 2026-10-04 01:10 UTCGHSA enrichment
  3. 2026-10-03 14:25 UTCEPSS rescore
  4. 2026-10-03 03:24 UTCEG score recompute
  5. 2026-10-03 03:24 UTCGHSA enrichment
  6. 2026-10-02 05:38 UTCEG score recompute
  7. 2026-10-02 05:37 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-10-01 07:45 UTCEG score recompute
  10. 2026-10-01 07:45 UTCGHSA enrichment
  11. 2026-09-30 15:02 UTCEPSS rescore
  12. 2026-09-30 09:59 UTCEG score recompute
  13. 2026-09-30 09:59 UTCGHSA enrichment
  14. 2026-09-29 15:20 UTCEPSS rescore
  15. 2026-09-29 12:12 UTCEG score recompute
  16. 2026-09-29 12:12 UTCGHSA enrichment
  17. 2026-09-28 14:26 UTCEG score recompute
  18. 2026-09-28 14:26 UTCGHSA enrichment
  19. 2026-09-28 13:50 UTCEPSS rescore
  20. 2026-09-28 13:27 UTCEG score recompute
  21. 2026-09-28 13:27 UTCGHSA enrichment
  22. 2026-09-27 18:24 UTCEG score recompute
  23. 2026-09-27 17:19 UTCEG score recompute
  24. 2026-09-27 17:18 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-101056?
CVE-2026-101056 is a medium vulnerability published on September 27, 2026. Cloudreve before 4.16.1 fails to revalidate share access when restoring cached navigator state from a context_hint UUID. Attackers who previously had valid share access can replay the cached hint to generate signed file URLs for up to 300 seconds after the share is deleted, expires, or reaches zero…
When was CVE-2026-101056 disclosed?
CVE-2026-101056 was first published on September 27, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-101056 actively exploited?
CVE-2026-101056 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-101056?
CVE-2026-101056 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-101056?
A fix for CVE-2026-101056 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-101056 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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