CVE-2026-82270
SSRF in Portkey AI Gateway /v1/proxy allows internal host access and API key exfiltration
Is CVE-2026-82270 being exploited?
Not confirmed. CVE-2026-82270 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 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-82270?
CVE-2026-82270 is rated High with a CVSS score of 8.7. 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-2026-82270?
Not known from our data. No patch reference has been recorded for CVE-2026-82270, 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-2026-82270 affect?
CVE-2026-82270 affects Portkey AI Gateway <= 1.15.2, Self-hosted deployments exposing /v1/proxy, Internal provider APIs behind gateway. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82270?
Apply vendor patch if released; otherwise block/validate x-portkey-custom-host, disable /v1/proxy, and restrict egress/internal access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SSRF via x-portkey-custom-host lets attackers reach internal services and forward Authorization headers to exfiltrate provider API keys and access internal APIs.
Immediate action required
- affected>= 1.14.0 and <= 1.15.2
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.