Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.48% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-114126High confidence
Storybook dev server: devices on the same network can obtain the WebSocket token and write code into story files
storybookjs · storybook
Official source article: GitHub GHSA-PX85-F4Q5-JH77 ↗. Check the applicable product and release in the original source.
8.7HighCVSS 4.0
Patch only the product branches with a verified fix
Fix availability varies by productHigh technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 10 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict local access and enforce least privilege on affected hosts.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs storybookjs storybook and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 10 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
- SUSE Product Security Team: 10 affected or under-investigation product states without a fixed product state in the same current advisory
Open-source package ranges24 source-attributed ranges
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| npm@storybook/addon-mcp | >= 10.6.0, < 10.6.2 | 10.6.2 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/addon-mcp | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/addon-mcp | SEMVER: introduced 10.6.0; fixed 10.6.2 | 10.6.2 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/addon-mcp | SEMVER: introduced 11.0.0-alpha.0; fixed 11.0.0-alpha.6 | 11.0.0-alpha.6 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/addon-vitest | >= 9.0.0, < 9.1.21 | 9.1.21 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/addon-vitest | >= 10.0.0, < 10.6.2 | 10.6.2 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/addon-vitest | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/addon-vitest | SEMVER: introduced 9.0.0; fixed 9.1.21 | 9.1.21 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/addon-vitest | SEMVER: introduced 10.0.0; fixed 10.6.2 | 10.6.2 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/addon-vitest | SEMVER: introduced 11.0.0-alpha.0; fixed 11.0.0-alpha.6 | 11.0.0-alpha.6 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/core | >= 8.0.0, < 8.6.19 | 8.6.19 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/core | SEMVER: introduced 8.0.0; fixed 8.6.19 | 8.6.19 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/core-server | >= 8.0.0, < 8.6.19 | 8.6.19 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/core-server | SEMVER: introduced 8.0.0; fixed 8.6.19 | 8.6.19 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npm@storybook/experimental-addon-test | >= 8.0.0, < 8.6.19 | 8.6.19 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npm@storybook/experimental-addon-test | SEMVER: introduced 8.0.0; fixed 8.6.19 | 8.6.19 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npmstorybook | >= 8.0.0, < 8.6.19 | 8.6.19 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npmstorybook | >= 9.0.0, < 9.1.21 | 9.1.21 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npmstorybook | >= 10.0.0, < 10.6.2 | 10.6.2 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npmstorybook | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GitHub advisory ↗upstream repository advisory · 22 Oct 2026 |
| npmstorybook | SEMVER: introduced 8.0.0; fixed 8.6.19 | 8.6.19 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npmstorybook | SEMVER: introduced 9.0.0; fixed 9.1.21 | 9.1.21 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npmstorybook | SEMVER: introduced 10.0.0; fixed 10.6.2 | 10.6.2 | OSV record ↗aggregator derived · 22 Oct 2026 |
| npmstorybook | SEMVER: introduced 11.0.0-alpha.0; fixed 11.0.0-alpha.6 | 11.0.0-alpha.6 | OSV record ↗aggregator derived · 22 Oct 2026 |
Direct vendor intelligence
2 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
CVE-2026-114126 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitystorybook: storybook: Arbitrary code execution via exposed WebSocket authentication token
The vendor explicitly identifies these products as affected by this CVE.
- workload-availability/node-healthcheck-must-gather-rhel9 as a component of Node HealthCheck Operator
- workload-availability/node-healthcheck-operator-bundle as a component of Node HealthCheck Operator
- workload-availability/node-healthcheck-rhel9-operator as a component of Node HealthCheck Operator
- workload-availability/node-remediation-console-rhel8 as a component of Node HealthCheck Operator
- rh-podman-desktop as a component of Red Hat Build of Podman Desktop
- Summary
- A flaw was found in Storybook, which may lead to arbitrary code execution. The development server exposes its WebSocket authentication token to clients loading its web pages across a local area network (LAN). An attacker on the local network can capture this token and abuse file-writing functionality to inject malicious code into project files, executing commands with the developer's privileges.
- Remediation
- For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
CVE-2026-114126 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-114126
The vendor explicitly identifies these products as affected by this CVE.
- trento-web as component of SUSE Linux Enterprise Module for SAP Applications 15 SP4
- trento-web as component of SUSE Linux Enterprise Module for SAP Applications 15 SP5
- trento-web as component of SUSE Linux Enterprise Module for SAP Applications 15 SP7
- trento-web as component of SUSE Linux Enterprise Server for SAP Applications 15 SP4
- trento-web as component of SUSE Linux Enterprise Server for SAP Applications 15 SP5
- trento-web as component of SUSE Linux Enterprise Server for SAP Applications 15 SP7
- trento-web as component of SUSE Linux Enterprise Server for SAP applications 16.0
- trento-web as component of SUSE Linux Enterprise Server for SAP applications 16.1
- trento-web as component of openSUSE Leap 16.0
- trento-web as component of openSUSE Leap 16.1
- Summary
- Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. A LAN attacker can obtain the token and invoke WebSocket-backed file-writing or testing functionality. Weak story-write validation can allow code to be placed in story files. If the Storybook Vitest addon is installed with an old version of Vitest, the payload can use a Vitest API to write additional files or execute commands. Depending on the payload and local tooling, the attack can lead to code execution with the developer's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6.
- Remediation
- No remediation text is recorded.
High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 10 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product01
What, why and how
Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. A LAN attacker can obtain the token and invoke WebSocket-backed file-writing or testing functionality. Weak story-write validation can allow code to be placed in story files. If the Storybook Vitest addon is installed with an old version of Vitest, the payload can use a Vitest API to write additional files or execute commands. Depending on the payload and local tooling, the attack can lead to code execution with the developer's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6.
What
Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. A LAN attacker can obtain the token and invoke WebSocket-backed file-writing or testing functionality. Weak story-write validation can allow code to be placed in story files. If the Storybook Vitest addon is installed with an old version of Vitest, the payload can use a Vitest API to write additional files or execute commands. Depending on the payload and local tooling, the attack can lead to code execution with the developer's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6.
Why
Attacker-controlled path data is not constrained to the intended directory before the application accesses a file.
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.
What
Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. A LAN attacker can obtain the token and invoke WebSocket-backed file-writing or testing functionality. Weak story-write validation can allow code to be placed in story files. If the Storybook Vitest addon is installed with an old version of Vitest, the payload can use a Vitest API to write additional files or execute commands. Depending on the payload and local tooling, the attack can lead to code execution with the developer's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6.
Why
Attacker-controlled path data is not constrained to the intended directory before the application accesses a file.
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- an adjacent network → Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') → execute code or commands in the affected security context
- Attack surface
- Adjacent
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- None
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Not a CVSS 4.0 base metric
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-22 ↗
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:NCommon Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.
AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCHighVulnerable-system confidentiality: A successful attack can cause a major loss.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VAHighVulnerable-system availability: A successful attack can cause a major loss.SCLowSubsequent-system confidentiality: A successful attack can cause a limited loss.SILowSubsequent-system integrity: A successful attack can cause a limited loss.SANoneSubsequent-system availability: No direct loss is represented by this metric.- Post-exploitation / living off the land
- After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Fix availability varies by product
- Affected
- workload-availability/node-healthcheck-must-gather-rhel9 as a component of Node HealthCheck Operator
- workload-availability/node-healthcheck-operator-bundle as a component of Node HealthCheck Operator
- workload-availability/node-healthcheck-rhel9-operator as a component of Node HealthCheck Operator
- workload-availability/node-remediation-console-rhel8 as a component of Node HealthCheck Operator
- rh-podman-desktop as a component of Red Hat Build of Podman Desktop
- Fixed
- grafana12.4-0:12.4.13-0.3.hum1@aarch64 as a component of Red Hat Hardened Images
- grafana12.4-0:12.4.13-0.3.hum1@src as a component of Red Hat Hardened Images
- grafana12.4-0:12.4.13-0.3.hum1@x86_64 as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.8-0.4.hum1@aarch64 as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.8-0.4.hum1@s390x as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.8-0.4.hum1@src as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.8-0.4.hum1@x86_64 as a component of Red Hat Hardened Images
- grafana13.2-0:13.2.4-0.3.hum1@aarch64 as a component of Red Hat Hardened Images
- grafana13.2-0:13.2.4-0.3.hum1@s390x as a component of Red Hat Hardened Images
- grafana13.2-0:13.2.4-0.3.hum1@src as a component of Red Hat Hardened Images
- grafana13.2-0:13.2.4-0.3.hum1@x86_64 as a component of Red Hat Hardened Images
- Action
- Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 21 Oct 2026 · Last source change 21 Oct 2026, 17:21 UTC · CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-10-22
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-107408
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- storybook: >= 8.0.0, < 8.6.19, >= 9.0.0, < 9.1.21, >= 10.0.0, < 10.6.2, >= 11.0.0-alpha.0, < 11.0.0-alpha.6 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- storybook: >= 8.0.0, < 8.6.19, >= 9.0.0, < 9.1.21, >= 10.0.0, < 10.6.2, >= 11.0.0-alpha.0, < 11.0.0-alpha.6 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
- Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-114126 to remediation: access.redhat.com/CVE-2026-114126.Red Hat Product Security ↗
- Before
- remediation: access.redhat.com/CVE-2026-114126
- After
- remediation: access.redhat.com/CVE-2026-114126
- Remediation statusRemediation status changed from Awaiting fix to Patch available.Red Hat Product Security ↗
- Before
- Awaiting fix
- After
- Patch available
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- workload-availability/node-healthcheck-must-gather-rhel9 as a component of Node HealthCheck Operator; workload-availability/node-healthcheck-operator-bundle as a component of Node HealthCheck Operator; workload-availability/node-healthcheck-rhel9-operator as a component of Node HealthCheck Operator; workload-availability/node-remediation-console-rhel8 as a component of Node HealthCheck Operator; rh-podman-desktop as a component of Red Hat Build of Podman Desktop; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; grafana as a component of Red Hat Enterprise Linux 9; grafana-selinux as a component of Red Hat Enterprise Linux 9; grafana.src as a component of Red Hat Enterprise Linux 9; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images; grafana13.2.src as a component of Red Hat Hardened Images
- After
- workload-availability/node-healthcheck-must-gather-rhel9 as a component of Node HealthCheck Operator; workload-availability/node-healthcheck-operator-bundle as a component of Node HealthCheck Operator; workload-availability/node-healthcheck-rhel9-operator as a component of Node HealthCheck Operator; workload-availability/node-remediation-console-rhel8 as a component of Node HealthCheck Operator; rh-podman-desktop as a component of Red Hat Build of Podman Desktop · Fixed: grafana12.4-0:12.4.13-0.3.hum1@aarch64 as a component of Red Hat Hardened Images; grafana12.4-0:12.4.13-0.3.hum1@src as a component of Red Hat Hardened Images; grafana12.4-0:12.4.13-0.3.hum1@x86_64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.8-0.4.hum1@aarch64 as a component of Red Hat Hardened Images; grafana13.1-0:13.1.8-0.4.hum1@s390x as a component of Red Hat Hardened Images; grafana13.1-0:13.1.8-0.4.hum1@src as a component of Red Hat Hardened Images; grafana13.1-0:13.1.8-0.4.hum1@x86_64 as a component of Red Hat Hardened Images; grafana13.2-0:13.2.4-0.3.hum1@aarch64 as a component of Red Hat Hardened Images; grafana13.2-0:13.2.4-0.3.hum1@s390x as a component of Red Hat Hardened Images; grafana13.2-0:13.2.4-0.3.hum1@src as a component of Red Hat Hardened Images; grafana13.2-0:13.2.4-0.3.hum1@x86_64 as a component of Red Hat Hardened Images
- ENISA EUVD mappingEUVD-2026-107408 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-107408"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
CVE published
Fixed release recorded from official guidance
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.