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CVE.org (no NVD analysis yet)· CNA Chrome

CVE-2026-113277: Information leak in CustomTabs in Google Chrome on on Android prior to 156.0.8078.47 allowed a local attacker to leak sensitive information…

MediumCVSS 6.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
  • 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.
  • Fixed version: Microsoft Edge (Chromium-based) 156.0.4314.42.

Low priority for now. Upgrade to Microsoft Edge (Chromium-based) 156.0.4314.42 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Information leak in CustomTabs in Google Chrome on on Android prior to 156.0.8078.47 allowed a local attacker to leak sensitive information via a co-installed app. (Chromium security severity: Medium)

Published
Oct 20, 2026
Updated
Nov 3, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 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.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-113277

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
googlechrome
googleandroid

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

    • 156.0.8078.47 and later · before 156.0.8078.47affected

Affected versions

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

  • google chromebefore 156.0.8078.47

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12chromiumbefore 156.0.8078.47-1~deb12u1156.0.8078.47-1~deb12u1
Debian:13chromiumbefore 156.0.8078.47-1~deb13u1156.0.8078.47-1~deb13u1
Debian:14chromiumbefore 156.0.8078.47-1156.0.8078.47-1

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…KEV
    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…KEV
    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…KEV
    90Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-113275Oct 20, 2026 · Missing authorization in API in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass…
    35Monitor
  • ← EarlierCVE-2026-113276Oct 20, 2026 · Missing authorization in Passwords in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker leveraging social…
    35Monitor
  • Later →CVE-2026-113278Oct 20, 2026 · UI misrepresentation in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to spoof…
    35Monitor

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
Microsoft Edge (Chromium-based)156.0.4314.42 · Release NotesMicrosoft (MSRC)
debian:chromium156.0.8078.47-1~deb12u1 · Debian:12Package registry (OSV)
debian:chromium156.0.8078.47-1~deb13u1 · Debian:13Package 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.

  1. Published
  2. Fix recorded+2 d
  3. TodayNov 12, 2026+23 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

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

  • CVE-2026-0905273 days apartInsufficient policy enforcement in Network in Google Chrome prior to 144.0.7559.59 allowed an attack who obtained a network log file to…
    39Monitor
  • CVE-2026-10623714 days apartInformation leak in Permissions in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to bypass site isolation via a crafted…
    38Monitor
  • CVE-2026-1132080 days apartInformation leak in ContextualSearch in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to…
    35Monitor
  • CVE-2026-1132430 days apartInformation leak in DOM in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to obtain sensitive information via a crafted…
    35Monitor
  • CVE-2026-1132680 days apartInformation leak in Navigation in Google Chrome on on iOS prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to…
    35Monitor
  • CVE-2026-1132880 days apartInformation leak in Core in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to leak sensitive…
    35Monitor

Not on record for this CVE: patch commit or PR link · researcher credit · public bounty program.

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

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-secondary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

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

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

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

Change log

  1. Fix✗ → ✓
  2. CVSS— → 6.5
  3. Severity— → medium
  4. SSVC exploitation— → none
  5. Exploit maturity— → none

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

References

Show all references (1 more)

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

All records