Zip Slip in codeskyblue gohttpserver lets attackers write files
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The /upload endpoint of codeskyblue gohttpserver through v1.3.0 contains a Zip Slip flaw. The server does not restrict the paths of files extracted from uploaded Zip archives (CWE-22), so a crafted archive can write files outside the intended directory. An unauthenticated remote attacker can write arbitrary files by uploading a crafted Zip archive.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
A Zip Slip vulnerability in the /upload endpoint of codeskyblue gohttpserver through v1.3.0 allows attackers to write arbitrary files via uploading a crafted Zip archive.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for codeskyblue gohttpserver.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-03 Threatist record created from CVE-2026-38600
- 2026-11-03 Alias added: GHSA-hr5w-6fh6-9m72
- 2026-11-03 CVSS score added · CISA ADP
- 2026-11-03 Weakness changed · CISA ADP
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Priority changed: LOW → HIGH
References
Sources
- CVE-2026-38600 · CVE Program
- CVE-2026-38600 · NVD
- FIRST EPSS
- GHSA-hr5w-6fh6-9m72 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences