CVE-2014-0138

CVE-2014-0138 is a medium-severity vulnerability in Haxx Curl with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.4)
• EPSS exploit prediction: 5% (91st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Haxx Curl
• Published: 2014-04-15
• Last modified: 2026-06-17

Description

The default configuration in cURL and libcurl 7.10.6 before 7.36.0 re-uses (1) SCP, (2) SFTP, (3) POP3, (4) POP3S, (5) IMAP, (6) IMAPS, (7) SMTP, (8) SMTPS, (9) LDAP, and (10) LDAPS connections, which might allow context-dependent attackers to connect as other users via a request, a similar issue to CVE-2014-0015.

Frequently asked questions

What is CVE-2014-0138?

The default configuration in cURL and libcurl 7.10.6 before 7.36.0 re-uses (1) SCP, (2) SFTP, (3) POP3, (4) POP3S, (5) IMAP, (6) IMAPS, (7) SMTP, (8) SMTPS, (9) LDAP, and (10) LDAPS connections, which might allow context-dependent attackers to connect as other users via a request, a similar issue to CVE-2014-0015.

How severe is CVE-2014-0138?

CVE-2014-0138 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2014-0138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-0138?

CVE-2014-0138 primarily affects Haxx Curl. In total, 131 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-0138?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-0138 published?

CVE-2014-0138 was published on 2014-04-15 and last updated on 2026-06-17.

References

• http://curl.haxx.se/docs/adv_20140326A.html
• http://lists.opensuse.org/opensuse-updates/2014-04/msg00042.html
• http://seclists.org/fulldisclosure/2014/Dec/23
• http://secunia.com/advisories/57836
• http://secunia.com/advisories/57966
• http://secunia.com/advisories/57968
• http://secunia.com/advisories/58615
• http://secunia.com/advisories/59458
• http://www-01.ibm.com/support/docview.wss?uid=swg21675820
• http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095862
• http://www.debian.org/security/2014/dsa-2902
• http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
• http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
• http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
• http://www.securityfocus.com/archive/1/534161/100/0/threaded
• http://www.ubuntu.com/usn/USN-2167-1
• http://www.vmware.com/security/advisories/VMSA-2014-0012.html

Affected products (131)

• cpe:2.3:a:haxx:curl:7.10.6:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.10.7:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.10.8:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.11.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.11.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.11.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.12.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.12.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.12.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.12.3:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.13.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.13.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.13.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.14.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.14.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.3:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.4:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.15.5:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.16.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.16.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.16.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.16.3:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.16.4:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.17.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.17.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.18.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.18.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.18.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.0:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.1:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.2:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.3:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.4:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.5:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.6:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.19.7:*:*:*:*:*:*:*
• cpe:2.3:a:haxx:curl:7.20.0:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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