curl and libcurl 7.27.0 through 7.35.0, when running on Windows and using the…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
curl and libcurl 7.27.0 through 7.35.0, when running on Windows and using the SChannel/Winssl TLS backend, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate when accessing a URL that uses a numerical IP address, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.
Why it matters now
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 · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:haxx:curl:7.27.0:*:*:*:*:*:*:* | 7.27.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.28.0:*:*:*:*:*:*:* | 7.28.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.28.1:*:*:*:*:*:*:* | 7.28.1 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.29.0:*:*:*:*:*:*:* | 7.29.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.30.0:*:*:*:*:*:*:* | 7.30.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.31.0:*:*:*:*:*:*:* | 7.31.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.32.0:*:*:*:*:*:*:* | 7.32.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.33.0:*:*:*:*:*:*:* | 7.33.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.34.0:*:*:*:*:*:*:* | 7.34.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:curl:7.35.0:*:*:*:*:*:*:* | 7.35.0 | Vulnerable | Haxx |
- cpe:2.3:a:haxx:curl:7.27.0:*:*:*:*:*:*:* Versions 7.27.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.28.0:*:*:*:*:*:*:* Versions 7.28.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.28.1:*:*:*:*:*:*:* Versions 7.28.1 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.29.0:*:*:*:*:*:*:* Versions 7.29.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.30.0:*:*:*:*:*:*:* Versions 7.30.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.31.0:*:*:*:*:*:*:* Versions 7.31.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.32.0:*:*:*:*:*:*:* Versions 7.32.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.33.0:*:*:*:*:*:*:* Versions 7.33.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.34.0:*:*:*:*:*:*:* Versions 7.34.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:curl:7.35.0:*:*:*:*:*:*:* Versions 7.35.0 Vulnerable ·Haxx
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:haxx:libcurl:7.27.0:*:*:*:*:*:*:* | 7.27.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.28.0:*:*:*:*:*:*:* | 7.28.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.28.1:*:*:*:*:*:*:* | 7.28.1 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.29.0:*:*:*:*:*:*:* | 7.29.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.30.0:*:*:*:*:*:*:* | 7.30.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.31.0:*:*:*:*:*:*:* | 7.31.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.32.0:*:*:*:*:*:*:* | 7.32.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.33.0:*:*:*:*:*:*:* | 7.33.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.34.0:*:*:*:*:*:*:* | 7.34.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.35.0:*:*:*:*:*:*:* | 7.35.0 | Vulnerable | Haxx |
| cpe:2.3:a:haxx:libcurl:7.36.0:*:*:*:*:*:*:* | 7.36.0 | Vulnerable | Haxx |
| cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:* | all versions | Running on | Microsoft |
- cpe:2.3:a:haxx:libcurl:7.27.0:*:*:*:*:*:*:* Versions 7.27.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.28.0:*:*:*:*:*:*:* Versions 7.28.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.28.1:*:*:*:*:*:*:* Versions 7.28.1 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.29.0:*:*:*:*:*:*:* Versions 7.29.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.30.0:*:*:*:*:*:*:* Versions 7.30.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.31.0:*:*:*:*:*:*:* Versions 7.31.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.32.0:*:*:*:*:*:*:* Versions 7.32.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.33.0:*:*:*:*:*:*:* Versions 7.33.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.34.0:*:*:*:*:*:*:* Versions 7.34.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.35.0:*:*:*:*:*:*:* Versions 7.35.0 Vulnerable ·Haxx
- cpe:2.3:a:haxx:libcurl:7.36.0:*:*:*:*:*:*:* Versions 7.36.0 Vulnerable ·Haxx
- cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-2522
- 2026-10-03 Alias added: GHSA-wrgp-wm42-6wqv
References
Other 6
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095862
- http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
- [oss-security] 20140317 Re: CVE request: flaw in curl's Windows SSL backend
- [oss-security] 20140317 CVE request: flaw in curl's Windows SSL backend
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
More Haxx Curl vulnerabilities
- TI-2026-16162 Negotiate ambient user conn reuse CVSS 3.1CRITICAL 9.8
- TI-2026-10231 cross-origin Digest auth state leak CVSS 3.1CRITICAL 9.8
- TI-2026-09063 HTTP/2 stream-dependency tree UAF CVSS 3.1CRITICAL 9.8
- TI-2026-07976 stale proxy password leak CVSS 3.1CRITICAL 9.8
- TI-2026-07845 SASL double-free CVSS 3.1CRITICAL 9.8
- TI-2023-12257 Injection in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
Sources
- CVE-2014-2522 · CVE Program
- CVE-2014-2522 · NVD
- FIRST EPSS
- GHSA-wrgp-wm42-6wqv · 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