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CVE-2026-11186· NVD / CVE Program· CNA Chrome

Inappropriate implementation in CSS in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML (U

Inappropriate implementation in CSS in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: Medium)

MediumCVSS 6.1 · v3.1—No exploit Fix available
Published
Jun 4, 2026
Updated
Jul 23, 2026
EPSS
0.2% · 6th percentile
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Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Affected systems

VendorProduct
googlechrome
applemacos
linuxlinux kernel
microsoftwindows

Affected versions

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

  • google chromebefore 149.0.7827.53

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Chrome). Independent of NVD's CPE analysis and usually ahead of it.

  • Google Chrome

    • 149.0.7827.53 and later · before 149.0.7827.53affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12chromiumbefore 149.0.7827.53-1~deb12u1149.0.7827.53-1~deb12u1
Debian:13chromiumbefore 149.0.7827.53-1~deb13u1149.0.7827.53-1~deb13u1
Debian:14chromiumbefore 149.0.7827.53-1149.0.7827.53-1

Same product

google: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of boKEV
    95Now
  • CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a craftKEV
    90Now
  • CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a sKEV
    90Now
  • CVE-2020-6418Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted KEV
    89Now
  • CVE-2020-15999Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption viKEV
    87Now
  • CVE-2022-2294Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption viaKEV
    86Now

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:chromium149.0.7827.53-1~deb12u1 · Debian:12Package 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.

No commit or PR link among the references.

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.

  • CVE-2025-0443505 days apartInsufficient data validation in Extensions in Google Chrome prior to 132.0.6834.83 allowed a remote attacker who convinced a user to engage
    35Monitor
  • CVE-2025-0447505 days apartInappropriate implementation in Navigation in Google Chrome prior to 132.0.6834.83 allowed a remote attacker to perform privilege escalation
    35Monitor
  • CVE-2025-13639184 days apartInappropriate implementation in WebRTC in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to perform arbitrary read/write via
    32Monitor
  • CVE-2026-111660 days apartInappropriate implementation in SVG in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML (U
    27Monitor
  • CVE-2026-111500 days apartInappropriate implementation in XML in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML (U
    24Monitor
  • CVE-2026-1245913 days apartInappropriate implementation in Serial in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to inject arbitrary scripts or HTM
    24Monitor

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
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

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

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

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

ATT&CK techniques

—

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