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CVE-2018-1000007

37
FAUCET Score

CVE-2018-1000007 is a critical information disclosure vulnerability in libcurl versions 7.1 through 7.57.0, affecting products from vendors like Canonical, Debian, and Red Hat. It allows authentication data to be leaked to third parties when custom headers, such as Authorization, are sent to subsequent hosts during HTTP redirects. With a CVSS score of 9.8 (CRITICAL), this vulnerability has a low attack complexity and can lead to high confidentiality, integrity, and availability impacts. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), its high FAUCET Risk Score of 84/100, significant community discussion, and media coverage highlight its potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.1, <= 7.57.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.03%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0803 is in the 89th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (26)

jitsipatch availablevia llm_extracted
Fixed in: 7.57.0
View patch
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: JBoss Core Services Apache HTTP Server 2.4.29 SP2Fixed in: jbcs-httpd24-curl
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nss-pem-0:1.0.3-5.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: curl-0:7.29.0-42.el7_4.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: curl-0:7.29.0-42.el7_4.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: curl-0:7.29.0-42.el7_4.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: curl-0:7.29.0-46.el7_5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: httpd24-curl-0:7.61.1-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: httpd24-httpd-0:2.4.34-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: httpd24-nghttp2-0:1.7.1-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: httpd24-curl-0:7.61.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: httpd24-httpd-0:2.4.34-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: httpd24-nghttp2-0:1.7.1-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: httpd24-curl-0:7.61.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: httpd24-httpd-0:2.4.34-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: httpd24-nghttp2-0:1.7.1-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: httpd24-curl-0:7.61.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: httpd24-httpd-0:2.4.34-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: httpd24-nghttp2-0:1.7.1-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: httpd24-curl-0:7.61.1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: httpd24-httpd-0:2.4.34-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: httpd24-nghttp2-0:1.7.1-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: curl-0:7.29.0-51.el7
View patch
sierra_wirelesspatch availablevia llm_extracted
Fixed in: 7.57.0
View patch
redhatend of lifevia redhat_api
Product: .NET Core 2.1 on Red Hat Enterprise LinuxFixed in: rh-dotnet21-curl

Vendor Advisories (3)

redhatCVE-2018-1000007Moderate

curl: HTTP authentication leak in redirects

Jan 24, 2018
sierra_wirelessllm-sierra_wireless-f2eb1fd51fbea2f7LOW

HTTP authentication leak in redirects

Jan 24, 2018
jitsillm-jitsi-14ac9ed45c3785bfLOW

HTTP authentication leak in redirects

Jan 24, 2018

References

access.redhat.com / errata/RHBA-2019:0327
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3157
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3558
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1543
Third Party Advisory
access.redhat.com / errata/RHSA-2020:0544
Third Party Advisory
access.redhat.com / errata/RHSA-2020:0594
Third Party Advisory
curl.haxx.se / docs/adv_2018-b3bf.html
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/01/msg00038.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3554-1
Third Party Advisory
usn.ubuntu.com / 3554-2
Third Party Advisory
debian.org / security/2018/dsa-4098
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuoct2019-5072832.html
PatchThird Party Advisory
openwall.com / lists/oss-security/2022/04/27/4
Mailing ListThird Party Advisory
securitytracker.com / id/1040274
Third Party AdvisoryVDB Entry