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CVE-2018-11713· NVD / CVE Program· CNA mitre

WebCore/platform/network/soup/SocketStreamHandleImplSoup.cpp in the libsoup network backend of WebKit, as used in WebKitGTK+ prior to versio

WebCore/platform/network/soup/SocketStreamHandleImplSoup.cpp in the libsoup network backend of WebKit, as used in WebKitGTK+ prior to version 2.20.0 or without libsoup 2.62.0, unexpectedly failed to use system proxy settings for WebSocket connections. As a result, users could be deanonymized by crafted web sites via a WebSocket connection.

MediumCVSS 6.5 · v3.0—No exploit Fix available
Published
Jun 4, 2018
Updated
Jun 16, 2026
EPSS
1.6% · 75th percentile
CWE
—
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JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

Noroxi analysis

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Affected systems

VendorProduct
webkitgtkwebkitgtk\+
gnomelibsoup

Affected versions

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

  • gnome libsoupbefore 2.62.0
  • webkitgtk webkitgtk+before 2.20.0

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12webkit2gtkbefore 2.20.0-22.20.0-2
openSUSE:Leap 15.0webkit2gtk3before 2.22.5-lp150.2.9.12.22.5-lp150.2.9.1
Red Hat:enterprise_linux:7::clientaccountsservicebefore 0:0.6.50-2.el70:0.6.50-2.el7
Red Hat:enterprise_linux:7::clientaccountsservice-debuginfobefore 0:0.6.50-2.el70:0.6.50-2.el7
Red Hat:enterprise_linux:7::clientaccountsservice-develbefore 0:0.6.50-2.el70:0.6.50-2.el7
Red Hat:enterprise_linux:7::clientaccountsservice-libsbefore 0:0.6.50-2.el70:0.6.50-2.el7
Red Hat:enterprise_linux:7::clientadwaita-cursor-themebefore 0:3.28.0-1.el70:3.28.0-1.el7
Red Hat:enterprise_linux:7::clientadwaita-gtk2-themebefore 0:3.28-2.el70:3.28-2.el7
Red Hat:enterprise_linux:7::clientadwaita-icon-themebefore 0:3.28.0-1.el70:3.28.0-1.el7
Red Hat:enterprise_linux:7::clientadwaita-icon-theme-develbefore 0:3.28.0-1.el70:3.28.0-1.el7
Red Hat:enterprise_linux:7::clientappstream-databefore 0:7-20180614.el70:7-20180614.el7
Red Hat:enterprise_linux:7::clientat-spi2-atkbefore 0:2.26.2-1.el70:2.26.2-1.el7
Red Hat:enterprise_linux:7::clientat-spi2-atk-debuginfobefore 0:2.26.2-1.el70:2.26.2-1.el7
Red Hat:enterprise_linux:7::clientat-spi2-atk-develbefore 0:2.26.2-1.el70:2.26.2-1.el7
Red Hat:enterprise_linux:7::clientat-spi2-corebefore 0:2.28.0-1.el70:2.28.0-1.el7
Red Hat:enterprise_linux:7::clientat-spi2-core-debuginfobefore 0:2.28.0-1.el70:2.28.0-1.el7
Red Hat:enterprise_linux:7::clientat-spi2-core-develbefore 0:2.28.0-1.el70:2.28.0-1.el7
Red Hat:enterprise_linux:7::clientatkbefore 0:2.28.1-1.el70:2.28.1-1.el7
Red Hat:enterprise_linux:7::clientatk-debuginfobefore 0:2.28.1-1.el70:2.28.1-1.el7
Red Hat:enterprise_linux:7::clientatk-develbefore 0:2.28.1-1.el70:2.28.1-1.el7
Red Hat:enterprise_linux:7::clientbaobabbefore 0:3.28.0-2.el70:3.28.0-2.el7
Red Hat:enterprise_linux:7::clientbaobab-debuginfobefore 0:3.28.0-2.el70:3.28.0-2.el7
Red Hat:enterprise_linux:7::clientboltbefore 0:0.4-3.el70:0.4-3.el7
Red Hat:enterprise_linux:7::clientbolt-debuginfobefore 0:0.4-3.el70:0.4-3.el7

+96

Same product

webkitgtk: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-11646webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebK
    51Plan
  • CVE-2018-12911WebKitGTK+ 2.20.3 has an off-by-one error, with a resultant out-of-bounds write, in the get_simple_globs functions in ThirdParty/xdgmime/src
    40Plan
  • CVE-2017-1000121The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly validate message size metadata, allowing a compromised
    39Monitor
  • CVE-2016-4761WebKitGTK+ before 2.14.0: A use-after-free vulnerability can allow remote attackers to cause a DoS
    35Monitor
  • CVE-2018-11712WebCore/platform/network/soup/SocketStreamHandleImplSoup.cpp in the libsoup network backend of WebKit, as used in WebKitGTK+ versions 2.20.0
    30Monitor
  • CVE-2017-1000122The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly validate certain message metadata, allowing a compromi
    21Monitor

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:webkit2gtk2.20.0-2 · Debian:12Package registry (OSV)
opensuse:webkit2gtk32.22.5-lp150.2.9.1 · openSUSE:Leap 15.0Package registry (OSV)
red hat:accountsservice0:0.6.50-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:accountsservice-debuginfo0:0.6.50-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:accountsservice-libs0:0.6.50-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:adwaita-cursor-theme0:3.28.0-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:adwaita-gtk2-theme0:3.28-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-command-not-found0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-debuginfo0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-glib0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-gstreamer-plugin0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-gtk3-module0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:PackageKit-yum0:1.1.10-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:webkit2gtk32.20.3-2.23.8 · SUSE:Linux Enterprise Desktop 12 SP3Package 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).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

—

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

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

All records