Angular: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 20.3.33, 21.2.25, 22.2.1
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 20.3.33, 21.2.25, 22.2.1.
- Exploitation0/40No signal
- Exposure7/25Reachable over the network without a login · Data gap: No advisory context yet
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity5.1/10CVSS 5.1
- No patch0/5No signal
What would change the score
- Would score about 67 if added to CISA KEV
- Would score about 62 if CISA's SSVC rates exploitation active
- Would score about 27 if advisories confirm default setups are exposed
CVE-2026-111754 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.1 (medium) and affects angular; fixed in 20.3.33, 21.2.25 and 22.2.1.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 12/100 · provisional
- Fix
- Fixed in 20.3.33, 21.2.25, 22.2.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Angular applications using server-side rendering (the @angular/platform-server and @angular/ssr packages) are affected, allowing an attacker to craft a request that causes the server to redirect users to an arbitrary external website, enabling open redirect attacks. Pure client-side Angular apps are not affected.
Read the original description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1.
What to do
Upgrade to a fixed version: 20.3.33, 21.2.25, 22.2.1.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- angular angular
through 19.2.25; From 20.0.0 · fixed in 20.3.33; From 21.0.0 · fixed in 21.2.25; From 22.0.0 · fixed in 22.2.1
Evidence 11
- Advisory
- Repository
- Repository
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- Repository
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- Repository
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Corrections
None so far.
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Questions about CVE-2026-111754
Is CVE-2026-111754 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-111754?
angular: through 19.2.25; from 20.0.0 before 20.3.33; from 21.0.0 before 21.2.25; from 22.0.0 before 22.2.1.Source: cve.now feed data
How do I fix CVE-2026-111754?
Upgrade to a fixed version: 20.3.33, 21.2.25, 22.2.1.Source: cve.now feed data