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NVD / CVE Program· CNA GitHub_M

CVE-2026-50169: Angular Service Worker Policy-Bypass & Credential-Stripping Vulnerabilities

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.22% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. Special conditions such as timing or configuration are required.
  • Fixed version: angular angular 22.0.0-rc.2.

Low priority for now. Upgrade to angular angular 22.0.0-rc.2 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

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15 20.3.22, and 19.2.23, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips the strict, client-defined request redirect policy configuration (such as redirect: 'error'), falling back to the browser's default 'follow' strategy. If the target web application makes client-side requests with a strict policy (e.g., expecting a network error instead of automatically following redirects), the service worker will bypass this instruction and automatically follow HTTP 3xx redirects to other destinations. This acts as an unintended proxy/intermediary ("Confused Deputy") and can result in cookie/credential exposure or same-origin session-restricted data leakage if public dynamic routes redirect to sensitive routes. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

MediumCVSS 5.7 · v4.0—No exploit Fix available
Published
Jun 22, 2026
Updated
Jul 9, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.7 / 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.

CNA vs NVD score

NVD
—
CNA · GitHub_M
5.7
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2026-50169

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
angularangular

Affected versions

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

  • angular angularup to 18.2.14 inclusive
  • angular angular19.0.0 and later · before 19.2.23
  • angular angular20.0.0 and later · before 20.3.22
  • angular angular21.0.0 and later · before 21.2.15
  • angular angular22.0.0

Versions reported by the vendor

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

  • angular angular

    • >= 22.0.0-next.0, < 22.0.0-rc.2, >= 21.0.0-next.0, < 21.2.15, >= 20.0.0-next.0, < 20.3.22, >= 19.0.0-next.0, < 19.2.23, <= 18.2.14affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12angular.jsfrom 0—
npm@angular/service-workerfrom 19.0.0-next.0 · before 19.2.2319.2.23
npm@angular/service-workerfrom 20.0.0-next.0 · before 20.3.2220.3.22
npm@angular/service-workerfrom 21.0.0-next.0 · before 21.2.1521.2.15
npm@angular/service-workerfrom 22.0.0-next.0 · before 22.0.0-rc.222.0.0-rc.2
npm@angular/service-workerup to and including 18.2.14—

Same product

angular: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-68945Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning
    35Monitor
  • CVE-2026-50168Angular: URL Parser Differential in @angular/platform-server leading to SSRF Allowlist Bypass
    35Monitor
  • CVE-2026-46417Angular: SSRF via Hostname Hijacking in @angular/platform-server
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-54267Jun 22, 2026 · Angular Client Hydration DOM Clobbering & Response-Cache Poisoning
    34Monitor
  • ← EarlierCVE-2026-54268Jun 22, 2026 · Angular: Denial of Service (DoS) via OOM in Date Formatting (formatDate)
    32Monitor
  • Later →CVE-2026-50170Jun 22, 2026 · Angular: Information Leak via Default Caching of Credentialed Requests in HttpTransferCache
    32Monitor

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
angular angular22.0.0-rc.2 · descriptionVendor (CNA)
npm:@angular/service-worker19.2.23Package registry (OSV)
npm:@angular/service-worker20.3.22Package registry (OSV)
npm:@angular/service-worker21.2.15Package registry (OSV)
npm:@angular/service-worker22.0.0-rc.2Package 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

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-2026-542640 days apartAngular: Sensitive Header Leakage on Cross-Origin Redirects in Angular Service Worker
    33Monitor
  • CVE-2026-8805980 days apartAngular: Information Leak via `HttpTransferCache` Bypass When Using `withRequestsMadeViaParent`
    23Monitor
  • CVE-2026-501840 days apartAngular: Request Credential & Cache Policy Stripping in Angular Service Worker
    22Monitor

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

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
High
Privileges required
None
User interaction
P
Scope
X

Weakness class (CWE)

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

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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✗ → ✓

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