`CVE-2026-103922`

Severity	9.3 Critical CVSS 3.1
Fixed in	`6.2.2`, `7.6.9`, `8.5.1`, `8.4.3`
Weakness	CWE-346
Published	1 Oct 2026
Updated	13 Oct 2026

Published 44 days ago. NVD often adds the list of affected products days or weeks after a CVE is published, and the other sources we check lag too. The scope and status here may change.

Description

Capacitor is a cross-platform native runtime for web applications. From 6.0.0 until 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1, the Android and iOS WebView navigation guard validates a target URL's host and scheme but not its path, allowing a victim who activates an untrusted link to navigate a frame to /_capacitor_http_interceptor_. The native proxy can fetch an attacker-selected URL and return the response as a document at the application's own origin, allowing script in that response to access same-origin storage, cookies, and registered Capacitor plugin capabilities. Applications remain affected when CapacitorHttp is disabled because affected releases serve the proxy path regardless of that setting. This issue is fixed in versions 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1.

CWE-441

Exploitation status

No public exploit

No exploit has been reported in the sources we check. The 1 repository below are public GitHub repositories with fewer than 5 stars.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC 1 indexed, none at 5+ stars
EPSS 0.41% chance in 30 days

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

Index	Artifact	Stars	First seen
GitHub PoC	A complete guide and workflow for integrating Agile sprints with DevOps CI/CD pipelines.		2026-10-02

Index

Artifact

Stars

First seen

GitHub PoC

A complete guide and workflow for integrating Agile sprints with DevOps CI/CD pipelines.

2026-10-02

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review human Researcher
Record active

Decided by	A researcher's recorded decision for this specific CVE
Finding	A researcher set this CVE's status to Outside Waratek scope.

Decided by

A researcher's recorded decision for this specific CVE

Finding

A researcher set this CVE's status to Outside Waratek scope.

Waratek research note

written 2026-11-13

Written by a Waratek engineer who reviewed this CVE. Their decision sets the status above, ahead of every automated rule except a withdrawal.

Comments

Capacitor is a mobile app runtime. The bug is in the Android and iOS WebView navigation guard, inside the phone app, not in a server JVM.

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

com.capacitorjs:core 6.0.0 6.2.2 unbounded

com.capacitorjs:core 7.0.0 7.6.9 unbounded

com.capacitorjs:core 8.5.0 8.5.1 unbounded

com.capacitorjs:core 8.3.5 8.4.3 unbounded

com.capacitorjs:core 8.0.0 none 8.3.4

Package	Introduced	Fixed	Last affected
`com.capacitorjs:core`	6.0.0	`6.2.2`	unbounded
`com.capacitorjs:core`	7.0.0	`7.6.9`	unbounded
`com.capacitorjs:core`	8.5.0	`8.5.1`	unbounded
`com.capacitorjs:core`	8.3.5	`8.4.3`	unbounded
`com.capacitorjs:core`	8.0.0	none	8.3.4

Products and versions

1 product, 5 version entries

Source	Vendor	Product	Scheme	Affected versions
osv	com.capacitorjs	core	generic	≥ 6.0.0 and ＜ 6.2.2 · ≥ 7.0.0 and ＜ 7.6.9 · ≥ 8.0.0 and ≤ 8.3.4 · ≥ 8.3.5 and ＜ 8.4.3 · ≥ 8.5.0 and ＜ 8.5.1

Source

Vendor

Product

Scheme

Affected versions

osv

com.capacitorjs

core

generic

≥ 6.0.0 and ＜ 6.2.2 · ≥ 7.0.0 and ＜ 7.6.9 · ≥ 8.0.0 and ≤ 8.3.4 · ≥ 8.3.5 and ＜ 8.4.3 · ≥ 8.5.0 and ＜ 8.5.1

References

URL	Tags
https://github.com/ionic-team/capacitor/security/advisories/GHSA-rvm3-566m-v7fv	WEB
https://github.com/ionic-team/capacitor/commit/430356a91e1419fc66862dc09835081aa501677e	WEB
https://github.com/ionic-team/capacitor/commit/745b5f805bf77bc6463977cc7d718cd9de44ccbc	WEB
https://github.com/ionic-team/capacitor/commit/80b6c5e81d062e1e158914040f49e044d95b7ccb	WEB
https://github.com/ionic-team/capacitor/commit/85ccc44151fdd5ae5e0d806d875766ef4b84ad5d	WEB
https://github.com/ionic-team/capacitor/commit/af9a287fef45f0ac68ce640cb42fed2d06b0f1b4	WEB
https://github.com/ionic-team/capacitor/commit/d5e3170ba0ff155fc542b7e6d16cff5201406540	WEB
https://github.com/ionic-team/capacitor/commit/ee586ae680887ba99d066616f976db149542d922	WEB
https://github.com/ionic-team/capacitor	PACKAGE
https://github.com/ionic-team/capacitor/releases/tag/8.5.1	WEB

URL

Timeline

Published	2026-10-01	By the CVE Program.
NVD record modified	2026-10-02	NVD's own last-modified date for this record.
Last VRT activity	2026-10-13	Most recent commit touching this CVE's classification, patch or rule file.
Classification created	2026-11-13	First commit adding this CVE's research note.

Published

2026-10-01

By the CVE Program.

NVD record modified

2026-10-02

NVD's own last-modified date for this record.

Last VRT activity

2026-10-13

Most recent commit touching this CVE's classification, patch or rule file.

Classification created

2026-11-13

First commit adding this CVE's research note.

How VRT decided (4 of 24 rules ran)

4 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification decided it matched Outside Waratek scope A researcher set this CVE's status to Outside Waratek scope.

5 manual classification not reached Manual classification of this CVE in the legacy dataset

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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