curl: lingering HTTP credentials in connection re-use
Published Jun 22, 2015
5.0
MEDIUMCVSS 2.0
EPSS 7.30%
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.
Affected products
No data.
No data.
Red Hat Ceph Storage 1.1
curl
Not affected
Red Hat Ceph Storage 1.2
curl
Not affected
Red Hat Enterprise Linux 5
curl
Not affected
Red Hat Enterprise Linux 6
curl
Not affected
Red Hat Enterprise Linux 7
curl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Ceph Storage 1.1 | curl | Not affected | n/a |
| Red Hat Ceph Storage 1.2 | curl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | curl | Not affected | n/a |
| Red Hat Enterprise Linux 6 | curl | Not affected | n/a |
| Red Hat Enterprise Linux 7 | curl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of curl as shipped with Red Hat Enterprise Linux 5, 6, and 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.30% (0.07299) | 94.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.21% (0.08210) | 94.14th | v5 (v2026.06.15) |
| Mar 30, 2025 | 4.52% (0.04525) | 88.11th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.83% (0.15834) | 91.27th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.52% (0.04525) | 88.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.48% (0.00480) | 76.66th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00480) | 75.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00480) | 72.08th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (14)
- http://curl.haxx.se/docs/adv_20150617A.html x_refsource_CONFIRMVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160660.html vendor-advisoryx_refsource_FEDORA
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.securityfocus.com/bid/75385 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/91787 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-3236 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1233816 Issue Tracking
- https://kc.mcafee.com/corporate/index?page=content&id=SB10131 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-3236
- https://security.gentoo.org/glsa/201509-02 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-3236
Change history (0)
No recorded changes yet.