CVE-2026-75059

Local code execution via Quick Documentation XSS

Published Aug 17, 2026 · Updated Aug 18, 2026

Code execution in JetBrains PyCharm before 2026.2.1 allows attackers to run code through the Quick Documentation feature. JetBrains has not published the exact sink, but the CNA maps the issue to CWE-79, indicating Quick Documentation improperly neutralizes attacker-controlled documentation content before rendering it in a browser-backed view. Exploitation is local and requires user interaction with crafted content; the published CVSS vector shows no prior privileges are required and limits the stated impact to confidentiality and integrity.

CVSS severity4.4
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in JetBrains PyCharm before 2026.2.1 allows attackers to run code through the Quick Documentation feature. JetBrains has not published the exact sink, but the CNA maps the issue to CWE-79, indicating Quick Documentation improperly neutralizes attacker-controlled documentation content before rendering it in a browser-backed view. Exploitation is local and requires user interaction with crafted content; the published CVSS vector shows no prior privileges are required and limits the stated impact to confidentiality and integrity.

The record

CVE
CVE-2026-75059
Published
Aug 17, 2026
Updated
Aug 18, 2026
Vendor
JetBrains
Product
PyCharm
Classifications
CWE-79, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.2.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

JetBrains · PyCharmversion=0 <2026.2.1

Published CVSS scores

4.4JetBrains s.r.o.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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