CVE-2026-107363

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (37th 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).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.1Exploit: Elevated riskExposed services: Not assessed

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

In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or delete queues belonging to that project, resulting in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA 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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
0.5%
EPSS %ILE
37th
KEV
Not listed

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

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 public PoC (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

October 7, 2026

Last Modified

October 8, 2026

Advisory Details (2)

Auto-updated Oct 7, 2026
No fix on record yet.
generic

oss-security - [OSSA-2026-043] OpenStack Zaqar: Zaqar WebSocket project substitution allows cross-project queue access (CVE-2026-pending)

https://www.openwall.com/lists/oss-security/2026/10/07/30
generic

Bug #2161402 “Authenticated Zaqar WebSocket Client Can Substitut...” : Bugs : OpenStack Security Advisory

https://launchpad.net/bugs/2161402

Vendor Advisories for CVE-2026-107363(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 17× in last 7d / 17× 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. 2026-10-10 21:32 UTCEG score recompute
  2. 2026-10-10 21:31 UTCGHSA enrichment
  3. 2026-10-10 19:59 UTCEPSS rescore
  4. 2026-10-09 21:34 UTCEG score recompute
  5. 2026-10-09 21:34 UTCGHSA enrichment
  6. 2026-10-09 20:06 UTCEPSS rescore
  7. 2026-10-08 21:39 UTCEG score recompute
  8. 2026-10-08 21:38 UTCGHSA enrichment
  9. 2026-10-08 17:11 UTCEPSS rescore
  10. 2026-10-08 00:30 UTCEG score recompute
  11. 2026-10-08 00:30 UTCGHSA enrichment
  12. 2026-10-07 23:22 UTCEG score recompute
  13. 2026-10-07 23:21 UTCGHSA enrichment
  14. 2026-10-07 21:25 UTCEG score recompute
  15. 2026-10-07 20:47 UTCEG score recompute
  16. 2026-10-07 20:22 UTCEG score recompute
  17. 2026-10-07 20:21 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-107363?
CVE-2026-107363 is a medium vulnerability published on October 7, 2026. In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or…
When was CVE-2026-107363 disclosed?
CVE-2026-107363 was first published on October 7, 2026, with the most recent update on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107363 actively exploited?
CVE-2026-107363 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107363?
CVE-2026-107363 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-107363?
No fix for CVE-2026-107363 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-107363 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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