01 Record
CVE-2026-123848
In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates
HighPUBLISHEDCNA: JetBrains
CNA base score7.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
02 Description
In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-11-06 16:10Z1 HR AGO
- Last updated
- 2026-11-06 16:10Z1 HR AGO
- Reserved
- 2026-11-06
- Assigning CNA
- JetBrains
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-297Improper Validation of Certificate with Host MismatchVariant
- Data version
- 5.2
- Document digest
- 88902e885827dc76f2c877faee25d8b7fb705c7208e7dd871fb130fdfbd4ba89
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.jetbrains.comhttps://www.jetbrains.com/privacy-security/issues-fixed/