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Missing Release of Memory after Effective Lifetime

CVE-2025-46686

Low
3.5/10

Summary

Redis versions prior to 7.2.8, 7.4.x prior to 7.4.3, and 8.0.x prior to 8.0.0 allow memory consumption via a multi-bulk command composed of many bulks, sent by an authenticated user. This occurs because the server allocates memory for the command arguments of every bulk, even when the command is skipped because of insufficient permissions. NOTE: this is disputed by the Supplier because abuse of the commands network protocol is not a violation of the Redis Security Model.

  • LOW
  • ADJACENT_NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • LOW

CWE-401 - Missing release of memory after effective lifetime (memory leak)

'Missing release of memory after effective lifetime (memory leak)' is a weakness that occurs when software doesn't effectively release allocated memory after it is used. If not addressed, this enables attackers to launch denial of service attacks (by crashing or hanging the program) or take advantage of other unexpected behavior resulting from low memory conditions.

References

Advisory Timeline

  • Published