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Fencer Vulns
medium 4.3

CVE-2016-5137 json

The CSPSource::schemeMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in…

published 2016-07-23 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6088

cvss
4.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

The CSPSource::schemeMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in Blink, as used in Google Chrome before 52.0.2743.82, does not apply http :80 policies to https :443 URLs and does not apply ws :80 policies to wss :443 URLs, which makes it easier for remote attackers to determine whether a specific HSTS web site has been visited by reading a CSP report. NOTE: this vulnerability is associated with a specification change after CVE-2016-1617 resolution.

Patch / fix

  • oxide-qt Ubuntu 14.04 LTS 1.16.5-0ubuntu0.14.04.1
  • oxide-qt Ubuntu 16.04 LTS 1.16.5-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 14.04 LTS 52.0.2743.116-0ubuntu0.14.04.1.1134
  • chromium-browser Ubuntu 16.04 LTS 52.0.2743.116-0ubuntu0.16.04.1.1250

ubuntu advisories UBUNTU-CVE-2016-5137

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium-browser RHEL 6 EXTRAS 52.0.2743.82-1.el6

red hat advisories RHSA-2016:1485

  • chromium openSUSE Tumbleweed 55.0.2883.75-3.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 52.0.2743.82-89.1

opensuse advisories openSUSE-SU-2024:10171-1openSUSE-SU-2024:12948-1openSUSE-SU-2016:1868-1openSUSE-SU-2016:1869-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-5137 updated cvss 6.5

chromium-browser: history sniffing with hsts and csp

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 52.0.2743.82-1.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 52.0.2743.82-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 52.0.2743.82-1.el6
    fixed: vendor fix RHSA-2016:1485

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 4.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.