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NVD / CVE Program· CNA mitre

CVE-2018-1000007: libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties.

CriticalCVSS 9.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Plan (action score 42/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 9.9% (FIRST EPSS); higher than 95.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: curl (Debian:12) 7.58.0-1; curl (Debian:7) 7.26.0-1+wheezy24; curl (Debian:8) 7.38.0-4+deb8u9.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Add it to your regular patch cycle. Upgrade to curl (Debian:12) 7.58.0-1; curl (Debian:7) 7.26.0-1+wheezy24; curl (Debian:8) 7.38.0-4+deb8u9 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request.

Published
Jan 24, 2018
Updated
Jun 16, 2026
EPSS
9.9% · 95th percentile
CWE
—

Report tools

JSON

Action score

42

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 9.9%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2018-1000007

When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
haxxcurl
debiandebian linux
canonicalubuntu linux
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server eus
redhatenterprise linux workstation
fujitsum10-1 firmware
fujitsum10-1
fujitsum10-4 firmware
fujitsum10-4

and 8 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux12.04
  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux17.10
  • debian debian linux7.0
  • debian debian linux8.0
  • debian debian linux9.0
  • fujitsu m10-1 firmwarebefore xcp2361
+12 more rows
  • fujitsu m10-1 firmwarebefore xcp3070
  • fujitsu m10-4 firmwarebefore xcp3070
  • fujitsu m10-4 firmwarebefore xcp2361
  • fujitsu m10-4s firmwarebefore xcp2361
  • fujitsu m10-4s firmwarebefore xcp3070
  • fujitsu m12-1 firmwarebefore xcp3070
  • fujitsu m12-1 firmwarebefore xcp2361
  • fujitsu m12-2 firmwarebefore xcp2361
  • fujitsu m12-2 firmwarebefore xcp3070
  • fujitsu m12-2s firmwarebefore xcp3070
  • fujitsu m12-2s firmwarebefore xcp2361
  • haxx curl7.1 and later · up to 7.57.0 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12curlbefore 7.58.0-17.58.0-1
Debian:7curlbefore 7.26.0-1+wheezy247.26.0-1+wheezy24
Debian:8curlbefore 7.38.0-4+deb8u97.38.0-4+deb8u9
Debian:9curlbefore 7.52.1-5+deb9u47.52.1-5+deb9u4
Red Hat:enterprise_linux:7::clientcurlbefore 0:7.29.0-51.el70:7.29.0-51.el7
Red Hat:enterprise_linux:7::clientcurl-debuginfobefore 0:7.29.0-51.el70:7.29.0-51.el7
Red Hat:enterprise_linux:7::clientlibcurlbefore 0:7.29.0-51.el70:7.29.0-51.el7
Red Hat:enterprise_linux:7::clientlibcurl-develbefore 0:7.29.0-51.el70:7.29.0-51.el7
Red Hat:enterprise_linux:7::clientnss-pembefore 0:1.0.3-5.el70:1.0.3-5.el7
Red Hat:enterprise_linux:7::clientnss-pem-debuginfobefore 0:1.0.3-5.el70:1.0.3-5.el7
Red Hat:rhel_aus:7.4::servercurlbefore 0:7.29.0-42.el7_4.20:7.29.0-42.el7_4.2
Red Hat:rhel_aus:7.4::servercurl-debuginfobefore 0:7.29.0-42.el7_4.20:7.29.0-42.el7_4.2
Red Hat:rhel_aus:7.4::serverlibcurlbefore 0:7.29.0-42.el7_4.20:7.29.0-42.el7_4.2
Red Hat:rhel_aus:7.4::serverlibcurl-develbefore 0:7.29.0-42.el7_4.20:7.29.0-42.el7_4.2
Red Hat:rhel_eus:7.5::computenodecurlbefore 0:7.29.0-46.el7_5.10:7.29.0-46.el7_5.1
Red Hat:rhel_eus:7.5::computenodecurl-debuginfobefore 0:7.29.0-46.el7_5.10:7.29.0-46.el7_5.1
Red Hat:rhel_eus:7.5::computenodelibcurlbefore 0:7.29.0-46.el7_5.10:7.29.0-46.el7_5.1
Red Hat:rhel_eus:7.5::computenodelibcurl-develbefore 0:7.29.0-46.el7_5.10:7.29.0-46.el7_5.1
SUSE:Linux Enterprise Desktop 12 SP2curlbefore 7.37.0-37.14.17.37.0-37.14.1
SUSE:Linux Enterprise Server 11-SECURITYcurl-openssl1before 7.19.7-1.70.13.17.19.7-1.70.13.1
SUSE:Linux Enterprise Software Development Kit 11 SP4curlbefore 7.19.7-1.70.13.17.19.7-1.70.13.1
SUSE:Studio Onsite 1.3curlbefore 7.19.7-1.20.53.13.17.19.7-1.20.53.13.1

Same product

haxx: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-22901curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session…
    51Plan
  • CVE-2023-38039When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API.
    47Plan
  • CVE-2024-2398HTTP/2 push headers memory-leak
    45Plan

Published before and after this one in the same product

  • ← EarlierCVE-2017-8817Nov 29, 2017 · The FTP wildcard function in curl and libcurl before 7.57.0 allows remote attackers to cause a denial of service (out-of-bounds read and…
    42Plan
  • ← EarlierCVE-2017-8818Nov 29, 2017 · curl and libcurl before 7.57.0 on 32-bit platforms allow attackers to cause a denial of service (out-of-bounds access and application…
    40Plan
  • Later →CVE-2017-2628Mar 12, 2018 · curl, as shipped in Red Hat Enterprise Linux 6 before version 7.19.7-53, did not correctly backport the fix for CVE-2015-3148 because it…
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:curl7.58.0-1 · Debian:12Package registry (OSV)
red hat:curl0:7.29.0-51.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:curl-debuginfo0:7.29.0-51.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libcurl0:7.29.0-51.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libcurl-devel0:7.29.0-51.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-pem0:1.0.3-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-pem-debuginfo0:1.0.3-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:curl7.19.7-1.20.53.13.1 · SUSE:Studio Onsite 1.3Package registry (OSV)
suse:curl-openssl17.19.7-1.70.13.1 · SUSE:Linux Enterprise Server 11-SECURITYPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (13 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records