CVE-2026-44437: Angular SSR: Open Redirect and Request Steering via Encoded X-Forwarded-Prefix
angular · angular-cli
Affected: angular-cli · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 10% of scored CVEs
DescriptionCVE.org
The Angular SSR is a server-rise rendering tool for Angular applications. From 19.0.0-next.0 to before 19.2.25, 20.3.25, 21.2.9, and 22.0.0-next.7, a vulnerability exists in the X-Forwarded-Prefix header processing logic within Angular SSR. The internal validation mechanism fails to properly account for URL-encoded characters, specifically dots (%2e%2e). This allows an attacker to bypass security filters by injecting encoded path traversal sequences that are later decoded and utilized by the application logic. When an Angular SSR application is configured to trust proxy headers and is deployed behind a proxy that forwards the X-Forwarded-Prefix header without prior sanitization, an attacker can provide a payload such as /%2e%2e/evil. This vulnerability is fixed in19.2.25, 20.3.25, 21.2.9, and 22.0.0-next.7.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- angular · angular-cli>= 22.0.0-next.0, < 22.0.0-next.7; >= 21.0.0-next.0, < 21.2.9; >= 20.0.0-next.0, < 20.3.25; >= 19.0.0-next.0, < 19.2.25
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-44437 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.