CVSS 3.1
7.1 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCVE-2026-18893 ibm cockroachdb postgresql for ibm vpc: Improper Privilege Management
High (7.1) in ibm cockroachdb postgresql for ibm vpc. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.
On this page
IBM CockroachDB PostgreSQL for IBM VPC 26.2.0 through 26.2.3, 25.4.0 through 25.4.12, and 25.2.0 through 25.2.20 is vulnerable to privilege escalation via user-defined function.
Severity
- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 3rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-269 Improper Privilege Management
- OWASP Top 10
- A06:2025 Insecure Design
- Published
- Modified
- Assigned by
- ibm (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Explain CVE-2026-18893 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-18893?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-18893?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-18893 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
- ibm:cockroachdb postgresql for ibm vpc
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| IBM CockroachDB PostgreSQL for IBM VPC | from 26.2.0 through 26.2.3 |
| IBM CockroachDB PostgreSQL for IBM VPC | from 25.4.0 through 25.4.12 |
| IBM CockroachDB PostgreSQL for IBM VPC | from 25.2.0 through 25.2.20 |
Attack patterns (CAPEC)
- CAPEC-58 Restful Privilege Elevation Likelihood: High · Severity: High
- CAPEC-122 Privilege Abuse Likelihood: High · Severity: Medium
- CAPEC-233 Privilege Escalation
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.