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Fencer Vulns
high 8.8

CVE-2016-5134 json

net/proxy/proxy_service.cc in the Proxy Auto-Config (PAC) feature in Google Chrome before 52.0.2743.82 does not ensure that URL information…

published 2016-07-23 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6085

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

net/proxy/proxy_service.cc in the Proxy Auto-Config (PAC) feature in Google Chrome before 52.0.2743.82 does not ensure that URL information is restricted to a scheme, host, and port, which allows remote attackers to discover credentials by operating a server with a PAC script, a related issue to CVE-2016-3763.

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-2016-5134

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-2016-5134 updated cvss 6.5

chromium-browser: url leakage via pac script

  • 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

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.