Affects SAP Cloud SDK for Python used in SAP BTP; SSRF can exfiltrate OAuth client credentials leading to wide account takeover across enterprise SAP deployments.
CVE-2026-89111
OAuth2 SSRF in SAP Cloud SDK for Python exfiltrates OAuth client secrets.
Is CVE-2026-89111 being exploited?
Not confirmed. CVE-2026-89111 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 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-89111?
CVE-2026-89111 is rated Critical with a CVSS score of 10.0. 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-2026-89111?
Yes. A fix has been recorded for CVE-2026-89111. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-89111 affect?
CVE-2026-89111 affects SAP Cloud SDK for Python, SAP BTP multi-tenant applications using tenant_subdomain, Apps using vulnerable SDK versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-89111?
Apply vendor fix/mitigation, validate/whitelist tenant_subdomain, restrict outbound requests, rotate exposed credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SSRF lets attacker redirect OAuth2 token requests to malicious servers, exfiltrating client credentials and enabling token theft and account takeover.
Immediate action required
- affected< 0.45.2
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.