cvedb.io
CVE-2026-12707
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-07-14T16:16:45.297 · Last modified 2026-07-14T16:45:02.603

Summary

Summary Cloudflare quiche was discovered to be vulnerable to memory resource exhaustion due to unbounded queuing of post-handshake client migration events. Impact quiche supports the connection migration features described in Section 9 of RFC 9000, which allows a single QUIC connection to survive changes in the network path. Although quiche implements the protections described in Section 9.3 of RFC 9000 to limit server state commitment, it was discovered that the collection of PathEvents, intended to be consumed by applications via the path_event_next() function, was not bounded. Once the QUIC handshake completed, a peer could exploit rapid source address migration in order to cause unbounded queuing of the PathEvent::ReusedSourceConnectionId type. Servers are vulnerable even i

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.