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TI-2026-85853 Aliases CVE-2026-123312GHSA-24gf-pfrx-x3gp

Server-side request forgery in JetBrains IntelliJ IDEA

Priority LOW 15CWE-827Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 is affected. Improper control of document type definition (CWE-827) lets crafted annotations.xml files trigger server-side request forgery while the IDE indexes them. A local attacker without privileges can trigger it, but a user must interact with the IDE.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 sSRF was possible via annotations.xml files during indexing

Why it matters now

EPSS 0.00115 1st percentileScored 2026-11-07
Fix Fixed IntelliJ IDEA (JetBrains): 2026.3, 2026.2.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JetBrainsIntelliJ IDEAbefore 2026.3, 2026.2.42026.3, 2026.2.4Patch availableCNA
  • IntelliJ IDEA VendorJetBrains Affected before 2026.3, 2026.2.4 Fixed in 2026.3, 2026.2.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*——JetBrains
  • cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:* Versions — — ·JetBrains

Remediation

Upgrade IntelliJ IDEA to 2026.3 or 2026.2.4, which fix the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA IntelliJ IDEA (JetBrains) Fixed in 2026.3, 2026.2.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    JetBrains IntelliJ IDEA 2026.3, 2026.2.4

    6 records Highest priority Priority LOW 6 LOW

    Other records, highest priority first

    • TI-2026-85835 Code execution in IntelliJ IDEA via Terraform tool path settingPriority LOW 35
    • TI-2026-85848 Server-side request forgery in JetBrains IntelliJ IDEAPriority LOW 32
    • TI-2026-85850 Cross-site scripting in JetBrains IntelliJ IDEA Markdown previewPriority LOW 27
    Show all 6 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123312
  2. 2026-11-06 Alias added: GHSA-24gf-pfrx-x3gp

References

Other 1

  • TI-2026-45031 Deserialization of untrusted data in JetBrains TeamCity KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18053 In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-22884 In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18054 In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible KEVCVSS 3.1HIGH 7.3
  • TI-2024-15905 In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible CVSS 3.1CRITICAL 9.8
  • TI-2024-24589 Insufficiently protected credentials in JetBrains IntelliJ IDEA CVSS 3.1CRITICAL 9.3
See all 787 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences