CVE-2018-5136

N/A
Published: June 11, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:59 AM UTC
2 products affected across 2 vendorsUbuntu LinuxFirefox

Using Firefox by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
N/A
Exploit prediction
EPSS 2%

Description

A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 59v < 59.0
Affected range stops below 59, so it looks safe — our inference, not a vendor statement
Affected range stops below 59.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/103386
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1040514
x_refsource_CONFIRMIssue TrackingPermissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1419166
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3596-1/

CVSS

Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card