What's New in v20.2.1

Cockroach Labs will stop providing Assistance Support for this version on May 10, 2022. Prior to that date, upgrade to a more recent version to continue receiving support. For more details, see the Release Support Policy.

November 20, 2020

This page lists additions and changes in v20.2.1 since v20.2.0.


A denial-of-service (DoS) vulnerability is present in CockroachDB v20.2.0 - v20.2.3 due to a bug in protobuf. This is resolved in CockroachDB v20.2.4 and later releases. When upgrading is not an option, users should audit their network configuration to verify that the CockroachDB HTTP port is not available to untrusted clients. We recommend blocking the HTTP port behind a firewall.

For more information, including other affected versions, see Technical Advisory 58932.


Cockroach Labs has discovered a bug relating to incremental backups, for CockroachDB v20.2.0 - v20.2.7. If a backup coincides with an in-progress index creation (backfill), RESTORE, or IMPORT, it is possible that a subsequent incremental backup will not include all of the indexed, restored or imported data.

Users are advised to upgrade to v20.2.8 or later, which includes resolutions.

For more information, including other affected versions, see Technical Advisory 63162.

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Docker image

$ docker pull cockroachdb/cockroach:v20.2.1

Bug fixes

  • Fixed a crash, introduced in the v20.2 series, caused by range scans over virtual tables with virtual indexes. #56459
  • Fixed a bug the occured when the Pebble storage engine was used with encryption-at-rest that could result in data corruption in some fairly rare cases after a table drop, table truncate, or replica deletion. #56678


This release includes 3 merged PRs by 3 authors.

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