cve.bz

CVE-2026-123848

7.4 high

High (7.4).

In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates

Severity

CVSS 3.1

7.4 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
CWE-297 Improper Validation of Certificate with Host Mismatch
OWASP Top 10
A07:2025 Authentication Failures
Published
Record from
the NVD, synced

Ask an AI about this CVE

Show the promptExplain CVE-2026-123848 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-123848?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-123848?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-2026-123848 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.

Versions

From the CNA's record in the CVE List.

ProductAffected
JetBrains IntelliJ IDEAbefore 2026.3

References

Check your stackJSON