Directory traversal vulnerability in H2O before 1.4.5 and 1.5.x before 1.5.0-beta2, when…
Priority LOW 23CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
Directory traversal vulnerability in H2O before 1.4.5 and 1.5.x before 1.5.0-beta2, when the file.dir directive is enabled, allows remote attackers to read arbitrary files via a crafted URL.
Why it matters now
EPSS 0.01655 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dena:h20:*:*:*:*:*:*:*:* | up to 1.4.4 | Vulnerable | Kazuho Oku |
| cpe:2.3:a:dena:h20:*:beta1:*:*:*:*:*:* | up to 1.5.0 | Vulnerable | Kazuho Oku |
- cpe:2.3:a:dena:h20:*:*:*:*:*:*:*:* Versions up to 1.4.4 Vulnerable ·Kazuho Oku
- cpe:2.3:a:dena:h20:*:beta1:*:*:*:*:*:* Versions up to 1.5.0 Vulnerable ·Kazuho Oku
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-5638
- 2026-10-03 Alias added: GHSA-f9g8-wqvv-hfcx
References
Sources
- CVE-2015-5638 · CVE Program
- CVE-2015-5638 · NVD
- FIRST EPSS
- GHSA-f9g8-wqvv-hfcx · GitHub Advisory Database · CC BY 4.0
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