CVE-2026-27800Public exploitNetwork attack vector

Arbitrary file write via unsanitized ZIP paths

Published Feb 25, 2026 · Updated Feb 25, 2026

Path traversal in Zed before 0.224.4 allows remote attackers to write files outside the extension sandbox via crafted ZIP entries. The extract_zip function joins each raw entry filename to the destination and passes the result to directory and file creation without containment validation. Exploitation requires installation of a malicious extension, which can overwrite files accessible to the Zed process.

CVSS severity7.4
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Zed before 0.224.4 allows remote attackers to write files outside the extension sandbox via crafted ZIP entries. The extract_zip function joins each raw entry filename to the destination and passes the result to directory and file creation without containment validation. Exploitation requires installation of a malicious extension, which can overwrite files accessible to the Zed process.

The record

CVE
CVE-2026-27800
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
Zed Industries
Product
Zed
Classifications
CWE-22, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=< 0.224.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zed Industries · Zedversion=< 0.224.4

Published CVSS scores

7.4NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
7.4GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204User Execution

Public exploit references

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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