Security8.10.1
Redis 8.10.1 Security Release
This security release fixes multiple critical vulnerabilities including out-of-bounds write in CMSketch RDB loading, TLS certificate authentication bypass, use-after-free issues in Vector Sets, and heap overflow risks. These fixes prevent remote code execution, memory corruption, and privilege escalation attacks.
Update urgency: SECURITY: There are security fixes in the release.
Security fixes
- (CVE-2026-62356) Miscalculated buffer size in
CMSketchRDB loading may lead to heap OOB write - Out-of-bounds access in TopK heap cleanup path (MOD-15410)
- Use-after-free in the TLS pending-data list when a command closes another pending connection
- A malicious RDB payload with an out-of-range
SLOT_INFOslot id causes memory corruption during RDB loading, which may lead to Remote Code Execution - Vector Sets: missing node level validation when loading a vector set from RDB may lead to out-of-bounds access
- Vector Sets: use-after-free when
VREMmutates the HNSW graph while backgroundVSIMthreads are still running - Vector Sets: a negative
hnsw_search()return was treated as a huge unsigned count, reading past the end of the result arrays - TLS client certificate authentication bypass: a Common Name containing an embedded NUL byte was truncated, allowing a client to authenticate as another (possibly privileged) ACL user
- #15594 Use-after-free in the blocked-client list when reprocessing a command evicts another client blocked on the same key
securityrdbtlsvector-setsmemory-safety
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