CVE-2026-123851

HTML-Encoded Prompt Injection Evasion in JetBrains Junie GitHub Action

Published Nov 6, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
In JetBrains Junie GitHub Action before 1.6.4 prompt injection protection could be bypassed via HTML-encoded characters

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains junie Github Action
Vendors & Products Jetbrains
Jetbrains junie Github Action
Type Values Removed Values Added
Title HTML-Encoded Prompt Injection Evasion in JetBrains Junie GitHub Action
Type Values Removed Values Added
Description In JetBrains Junie GitHub Action before 1.6.4 prompt injection protection could be bypassed via HTML-encoded characters
Weaknesses CWE-180
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Nov 6, 2026, 8:40 PM
Reserved
Nov 6, 2026, 4:05 PM
Status
Awaiting Analysis
Published
Nov 6, 2026, 5:17 PM
Modified
Nov 6, 2026, 9:17 PM