Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2026-50170

Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
22/06/2026
Last modified:
09/07/2026

Description

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, a vulnerability was discovered in @angular/common when Server-Side Rendering (SSR) and hydration are enabled. The HttpTransferCache utility optimizes hydration by caching outgoing HTTP requests performed during SSR and transferring the cached state to the client-side application via TransferState. However, the caching mechanism fails to inspect the withCredentials flag or the Cookie header of outgoing requests. As a result, credentialed, user-specific responses may be cached by default in the shared TransferState payload. When these responses are serialized into the HTML, any caching layer (such as a CDN, reverse proxy, or shared server cache) that caches the SSR-rendered HTML page could inadvertently cache and leak one user's private data to other users, leading to a high-severity information disclosure vulnerability. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
8.20
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 18.2.14 (including)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 19.0.0 (including) 19.2.23 (excluding)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 20.0.0 (including) 20.3.22 (excluding)
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* 21.0.0 (including) 21.2.15 (excluding)
cpe:2.3:a:angular:angular:22.0.0:next0:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next1:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next10:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next11:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next12:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next2:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next3:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next4:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next5:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next6:*:*:*:node.js:*:*
cpe:2.3:a:angular:angular:22.0.0:next7:*:*:*:node.js:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools