GHSA-7h5v-85w9-pq6c Denial of service (via resource exhaustion) due to improper input validation in third-party identifier endpoint

• PyPI matrix-synapse: < 1.33.0 → fixed in 1.33.0

Impact Missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Patches The issue is fixed by https://github.com/matrix-org/synapse/pull/9855. Workarounds There are no known workarounds. References n/a For more information If you have any questions or comments about this advisory, email us at [email protected].