CVE-2026-48113
Authenticated clients can bypass chisel ACLs to tunnel to arbitrary destinations.
Is CVE-2026-48113 being exploited?
Not confirmed. CVE-2026-48113 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 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-48113?
CVE-2026-48113 is rated High with a CVSS score of 8.5. 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-2026-48113?
Yes. A fix has been recorded for CVE-2026-48113. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48113 affect?
CVE-2026-48113 affects Chisel server versions prior to 1.11.5, Authenticated Chisel clients/tunnels. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48113?
Upgrade Chisel to 1.11.5; restrict server network egress and monitor tunnels.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated client can bypass --authfile ACLs and open SSH channels to any host:port reachable from the server, enabling pivoting, port-forwarding, and data exfiltration.
Patch when possible
- affected< 1.11.5
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.