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CVE Record

CVE-2018-1002207: mholt/archiver golang package before e4ef56d48eb029648b0e895bb0b6a393ef0829c3 is vulnerable to directory tr...

mholt/archiver golang package before e4ef56d48eb029648b0e895bb0b6a393ef0829c3 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in an archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE affects the Go mholt/archiver package. When extracting a crafted archive, vulnerable versions could write files outside the intended destination, potentially overwriting application or system files. Business risk depends on whether systems accept and extract untrusted archives. Sources do not provide CVSS, confirmed active exploitation, or a named release version.

Executive priority

Treat as a targeted remediation item where the package processes untrusted archives. It is not KEV-listed in the provided data, but arbitrary file write can become high-impact if extraction occurs in privileged or production paths.

Technical view

CWE-22 directory traversal in mholt/archiver before commit e4ef56d48eb029648b0e895bb0b6a393ef0829c3. Archive entry paths were mishandled during extraction, enabling Zip Slip style arbitrary file writes outside the extraction directory. The source bundle identifies the fix commit and pull request, but not an affected version range beyond before that commit.

Likely exposure

Exposure is most likely in Go applications, CLIs, or services that depend on mholt/archiver and extract archives from users, partners, uploads, build artifacts, or other untrusted sources. Systems that only extract trusted internal archives have lower practical exposure.

Exploitation context

The public sources describe the vulnerability class and affected package, but the bundle marks KEV false and provides no cited evidence of active exploitation. Exploitation would require a malicious archive being processed by a vulnerable extractor in a context where file overwrite has impact.

Researcher notes

The evidence supports Zip Slip directory traversal and arbitrary file write in mholt/archiver before the named commit. Severity metadata is incomplete: no CVSS is supplied, no precise version range is listed, and no active exploitation evidence is provided in the bundle.

Mitigation direction

  • Upgrade mholt/archiver to code containing commit e4ef56d48eb029648b0e895bb0b6a393ef0829c3.
  • Check current vendor or project guidance for the maintained replacement version.
  • Avoid extracting untrusted archives with vulnerable builds until remediated.
  • Restrict extraction privileges and destination write permissions where practical.
  • Review applications for archive extraction paths reachable by external users.

Validation and detection

  • Inventory Go modules and binaries for mholt/archiver usage.
  • Confirm the deployed dependency includes the referenced fix commit or later code.
  • Identify routes, jobs, or tools that extract user-supplied archives.
  • Review tests for traversal-safe extraction behavior without using offensive payload detail.
  • Prioritize validation on internet-facing or partner-facing upload workflows.
Prepared
Confidence
high
Sources
7

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-22: File access and web shell behavior lookup

File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-1002207 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
golangarchiverunspecifiedListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-22 · source CWE mapping

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.