Arbitrary File Write in Rapid7 InsightConnect Sed Plugin

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Summary

CVECVE-2026-9154
StatePUBLISHED
Assignerrapid7
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 01:16:27 UTC
Updated2026-06-27 19:25:30 UTC
DescriptionArbitrary File Write vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows authenticated attackers to write attacker-controlled content to arbitrary file paths via the expression parameter.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.002750000 probability, percentile 0.192610000 (date 2026-06-29)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
3.1CNACVSS7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Sed 4.2.2 All All All
Operating System Linux Linux Kernel - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rapid7 InsightConnect Sed Plugin affected 2.0.5 custom Linux
CNA Rapid7 InsightConnect Sed Plugin unaffected 2.0.5 custom Linux

References

ReferenceSourceLinkTags
extensions.rapid7.com/extension/sed [email protected] extensions.rapid7.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Sebastián Alba Vives (@Sebasteuo / 0xs4bbi), Independent security researcher, Costa Rica (en)

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