Missing authorization in Mooncake Store allows replica injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Mooncake Store from 0 through 0.3.13.post1 by kvcache-ai contains a missing authorization flaw (CWE-862). An unauthenticated remote attacker can inject completed LOCAL_DISK replicas through the NotifyOffloadSuccess RPC. The attacker mounts a local disk segment under a self-chosen client UUID and attaches replicas that point to attacker-controlled endpoints, which lets them serve poisoned disk-tier reads and fake key existence.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Mooncake Store master through 0.3.13.post1 contains a missing authorization vulnerability that allows unauthenticated attackers to inject completed LOCAL_DISK replicas through the NotifyOffloadSuccess RPC. Attackers can mount a local disk segment with a self-chosen client UUID, then attach replicas pointing at attacker-controlled endpoints to serve poisoned disk-tier reads and fake key existence.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kvcache-ai | Mooncake | up to 0.3.13.post1 | — | No fix listed | CNA |
- Mooncake Vendorkvcache-ai Affected up to 0.3.13.post1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Mooncake.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-06 Threatist record created from CVE-2026-106041
- 2026-10-06 Alias added: GHSA-whqj-m6f3-5p4j
- 2026-10-06 CISA SSVC decision points changed
- 2026-10-06 Priority changed: MEDIUM → HIGH
References
More kvcache-ai vulnerabilities
- TI-2026-68428 Missing authentication in Mooncake Store REST service CVSS 4.0CRITICAL 9.3
- TI-2026-65760 Mooncake transfer engine before 0.3.13 Unauthenticated Arbitrary Memory Read/Write via TCP Transport CVSS 4.0CRITICAL 9.3
- TI-2026-21201 KTransformers Unsafe Deserialization RCE via balance_serve CVSS 4.0CRITICAL 9.3
- TI-2026-65761 Mooncake through 0.3.13.post1 Missing Authentication in HTTP Metadata Server CVSS 4.0HIGH 8.8
- TI-2026-68429 Mooncake Store lets unauthenticated attackers delete any object CVSS 4.0HIGH 8.8
- TI-2026-67384 Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString CVSS 4.0HIGH 8.7
Sources
- CVE-2026-106041 · CVE Program
- CVE-2026-106041 · NVD
- FIRST EPSS
- GHSA-whqj-m6f3-5p4j · GitHub Advisory Database · CC BY 4.0
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