CVE-2026-50556
SSR XSS in Angular via domino noscript serialization.
Is CVE-2026-50556 being exploited?
Not confirmed. CVE-2026-50556 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.41% probability of exploitation in the next 30 days.
How severe is CVE-2026-50556?
CVE-2026-50556 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-50556?
Yes. A fix has been recorded for CVE-2026-50556. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-50556 affect?
CVE-2026-50556 affects Angular framework, @angular/platform-server, domino, SSR Angular apps. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50556?
Upgrade to fixed Angular versions (22.0.0-rc.2 or newer).
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote XSS via unescaped noscript content in SSR-rendered pages.
Patch when possible
- affected>= 22.0.0-next.0 and < 22.0.0-rc.2
- affected>= 21.0.0-next.0 and < 21.2.16
- affected>= 20.0.0-next.0 and < 20.3.24
- affected>= 19.0.0-next.0 and < 19.2.25
- affected<= 18.2.14
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.