Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, Angular's HttpTransferCache caches HTTP requests made during Server-Side Rendering (SSR) so that they can be reused during client-side hydration. This avoids repeating the same HTTP requests on the client. The cached responses are stored in TransferState using a cache key generated by hashing request properties (method, response type, mapped URL, serialized body, and sorted query parameters). The cache keys are generated using a weak 32-bit DJB2-like polynomial rolling hash. The 32-bit hash space is extremely small, allowing attackers to find hash collisions. An attacker can easily find a query parameter string (e.g., q=aaCAZMMM for a search request) that produces the exact same 32-bit hash as a sensitive endpoint (e.g., /api/user/profile). When a victim visits a crafted link containing the colliding parameter, the SSR process executes both the search request and the profile request. Due to the hash collision, the search response overwrites the profile response in the TransferState cache. This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Angular is a development platform for building mobile and desktop web applications using     TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, Angular's     HttpTransferCache caches HTTP requests made during Server-Side Rendering (SSR) so that they can be reused     during client-side hydration. This avoids repeating the same HTTP requests on the client. The cached     responses are stored in TransferState using a cache key generated by hashing request properties (method,     response type, mapped URL, serialized body, and sorted query parameters). The cache keys are generated     using a weak 32-bit DJB2-like polynomial rolling hash. The 32-bit hash space is extremely small, allowing     attackers to find hash collisions. An attacker can easily find a query parameter string (e.g., q=aaCAZMMM     for a search request) that produces the exact same 32-bit hash as a sensitive endpoint (e.g.,     /api/user/profile). When a victim visits a crafted link containing the colliding parameter, the SSR     process executes both the search request and the profile request. Due to the hash collision, the search     response overwrites the profile response in the TransferState cache. This vulnerability is fixed in     22.0.1, 21.2.17, and 20.3.25. (CVE-2026-54266)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Angular is a development platform for building mobile and desktop web applications using
    TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, Angular's
    HttpTransferCache caches HTTP requests made during Server-Side Rendering (SSR) so that they can be reused
    during client-side hydration. This avoids repeating the same HTTP requests on the client. The cached
    responses are stored in TransferState using a cache key generated by hashing request properties (method,
    response type, mapped URL, serialized body, and sorted query parameters). The cache keys are generated
    using a weak 32-bit DJB2-like polynomial rolling hash. The 32-bit hash space is extremely small, allowing
    attackers to find hash collisions. An attacker can easily find a query parameter string (e.g., q=aaCAZMMM
    for a search request) that produces the exact same 32-bit hash as a sensitive endpoint (e.g.,
    /api/user/profile). When a victim visits a crafted link containing the colliding parameter, the SSR
    process executes both the search request and the profile request. Due to the hash collision, the search
    response overwrites the profile response in the TransferState cache. This vulnerability is fixed in
    22.0.1, 21.2.17, and 20.3.25. (CVE-2026-54266)

ID	Name	Product	Family	Severity
322246	Linux Distros Unpatched Vulnerability : CVE-2026-54266	Nessus	Misc.	high
443193	SCA: security update for @angular/common (GHSA-39pv-4j6c-2g6v)	Tenable Cloud Security	SCA Checks	high
443193	SCA: security update for @angular/common (GHSA-39pv-4j6c-2g6v)	Tenable Self-Hosted Container Security	SCA Checks	high

Detections

Analytics

CVE-2026-54266

high

Tenable Plugins

high

high

high