Affects widely-used Cloud Foundry platform; token forgery could disrupt many enterprises using UUA.
CVE-2026-22734
Auth bypass in Cloud Foundry UUA via unsigned SAML bearer assertions.
Is CVE-2026-22734 being exploited?
Not confirmed. CVE-2026-22734 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 0.36% probability of exploitation in the next 30 days.
How severe is CVE-2026-22734?
CVE-2026-22734 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-2026-22734?
Not known from our data. No patch reference has been recorded for CVE-2026-22734, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-22734 affect?
CVE-2026-22734 affects Cloud Foundry UUA (v77.30.0–v78.7.0), CF Deployment (v48.7.0–v54.14.0). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22734?
Upgrade to patched UUA/CF Deployment versions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Token forgery enables bypass of UAA auth and access to UAA-protected apps.
Patch when possible
- affected>= v77.21.0 and <= v78.8.0
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.