CVE-2026-91048

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.4% (36th 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: cisa-adp, epss
Trending — 5 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

The jdbc shell command scope shipped no org.apache.karaf.command.acl.jdbc.cfg. Karaf's command guard (SecuredSessionFactoryImpl) treats a command with no matching ACL rule as allowed, so any authenticated shell session (including one holding only the viewer role) could run every jdbc:* command. jdbc:ds-create stores a fully attacker-controlled JDBC URL into a pax-jdbc-config factory Configuration with no validation. pax-jdbc-config reactively turns that into a live DataSource. Several JDBC drivers run code or SQL at connection time based on URL parameters (e.g. H2 INIT=RUNSCRIPT), so a viewer-level shell user could reach arbitrary code execution, bypassing the admin-role gate that already protects shell:exec. This is a privilege-escalation-to-RCE chain, not merely an "admin misconfiguration".

The same applies to jms:* shell commands.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend 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 at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend 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 at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 29, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Oct 1, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-91048: Apache Karaf: Missing authorization on the jdbc:* shell command scope allows privilege escalation to remote code execution via jdbc:ds-create

http://www.openwall.com/lists/oss-security/2026/09/28/9

Vendor Advisories for CVE-2026-91048(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 31× in last 7d / 31× 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 13:18 UTCGHSA enrichment
  2. 2026-10-04 09:14 UTCGHSA enrichment
  3. 2026-10-04 05:09 UTCGHSA enrichment
  4. 2026-10-04 01:05 UTCGHSA enrichment
  5. 2026-10-03 21:00 UTCGHSA enrichment
  6. 2026-10-03 16:55 UTCEG score recompute
  7. 2026-10-03 16:55 UTCGHSA enrichment
  8. 2026-10-03 12:51 UTCGHSA enrichment
  9. 2026-10-03 08:47 UTCGHSA enrichment
  10. 2026-10-03 04:40 UTCGHSA enrichment
  11. 2026-10-03 00:34 UTCGHSA enrichment
  12. 2026-10-02 20:30 UTCEG score recompute
  13. 2026-10-02 20:30 UTCGHSA enrichment
  14. 2026-10-02 16:23 UTCGHSA enrichment
  15. 2026-10-02 12:18 UTCGHSA enrichment
  16. 2026-10-02 08:14 UTCGHSA enrichment
  17. 2026-10-02 04:09 UTCGHSA enrichment
  18. 2026-10-02 00:02 UTCEG score recompute
  19. 2026-10-02 00:02 UTCGHSA enrichment
  20. 2026-10-01 19:51 UTCEPSS rescore
  21. 2026-10-01 19:27 UTCGHSA enrichment
  22. 2026-10-01 15:23 UTCGHSA enrichment
  23. 2026-10-01 14:21 UTCEG score recompute▲ 9.80
  24. 2026-10-01 14:21 UTCGHSA enrichment
  25. 2026-10-01 14:20 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
Show 6 more
  1. 2026-09-30 15:04 UTCEPSS rescore
  2. 2026-09-29 14:57 UTCGHSA enrichment
  3. 2026-09-29 10:42 UTCGHSA enrichment
  4. 2026-09-29 09:25 UTCNVD update
  5. 2026-09-29 08:44 UTCEG score recompute
  6. 2026-09-29 08:43 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-91048?
CVE-2026-91048 is a critical vulnerability published on September 29, 2026. The jdbc shell command scope shipped no org.apache.karaf.command.acl.jdbc.cfg. Karaf's command guard (SecuredSessionFactoryImpl) treats a command with no matching ACL rule as allowed, so any authenticated shell session (including one holding only the viewer role) could run every jdbc:* command.…
When was CVE-2026-91048 disclosed?
CVE-2026-91048 was first published on September 29, 2026, with the most recent update on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91048 actively exploited?
CVE-2026-91048 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-91048?
CVE-2026-91048 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-91048?
No fix for CVE-2026-91048 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-2026-91048 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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