CVE-2023-54365
DoS in Traefik HTTP/2 handling can exhaust resources via rapid stream churn.
Is CVE-2023-54365 being exploited?
Not confirmed. CVE-2023-54365 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 0.77% probability of exploitation in the next 30 days.
How severe is CVE-2023-54365?
CVE-2023-54365 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-2023-54365?
Yes. A fix has been recorded for CVE-2023-54365. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2023-54365 affect?
CVE-2023-54365 affects Traefik (<2.10.5, 3.0.0-beta4). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2023-54365?
Upgrade to 2.10.5 or 3.0.0-beta4+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can exhaust server resources by rapidly creating/cancelling HTTP/2 streams, causing unavailability.
Patch when possible
- affected< 2.10.5
- affected>= 3.0.0-beta1 and < 3.0.0-beta4
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.