CVE-2026-86506Network attack vector

Profiling data disclosure via unauthenticated pprof server

Published Sep 7, 2026 · Updated Sep 8, 2026

Missing authentication in the GoLand profiler before 2026.2.2.1 allows remote attackers to read profiling data from its pprof server. The IDE injects a pprof server for profiling but does not require a client to authenticate before the server returns profile data. The server must be running and network-reachable; access is unauthenticated and exposes profiling information without reported modification or service interruption.

CVSS severity5.9
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in the GoLand profiler before 2026.2.2.1 allows remote attackers to read profiling data from its pprof server. The IDE injects a pprof server for profiling but does not require a client to authenticate before the server returns profile data. The server must be running and network-reachable; access is unauthenticated and exposes profiling information without reported modification or service interruption.

The record

CVE
CVE-2026-86506
Published
Sep 7, 2026
Updated
Sep 8, 2026
Vendor
JetBrains
Product
GoLand
Classifications
CWE-306
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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 <2026.2.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · GoLandversion=0 <2026.2.2.1

Published CVSS scores

5.9JetBrainsCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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