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Vulnerability record · CVE-2015-3236 · published 22 June 2015

CVE-2015-3236: Haxx curl information exposure vulnerability

Haxx · Curl

cURL and libcurl 7.40.0 through 7.42.1 send the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via unspecified vectors.

5.0 CVSS 2.0 Medium EPSS 7.3% · top 5.8% CWE-200 · Information exposure
5.0CVSS 2.0 base score
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

cURL and libcurl 7.40.0 through 7.42.1 send the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via unspecified vectors.

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://curl.haxx.se/docs/adv_20150617A.html Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160660.html
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html PatchThird Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html PatchThird Party Advisory
http://www.securityfocus.com/bid/75385
http://www.securityfocus.com/bid/91787 Third Party AdvisoryVDB Entry
https://kc.mcafee.com/corporate/index?page=content&id=SB10131
https://security.gentoo.org/glsa/201509-02
http://curl.haxx.se/docs/adv_20150617A.html Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160660.html
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html PatchThird Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html PatchThird Party Advisory
http://www.securityfocus.com/bid/75385
http://www.securityfocus.com/bid/91787 Third Party AdvisoryVDB Entry
https://kc.mcafee.com/corporate/index?page=content&id=SB10131
https://security.gentoo.org/glsa/201509-02

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-3236), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.