Mooncake Store lets unauthenticated attackers delete any object
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 · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Mooncake Store from kvcache-ai, master through 0.3.13.post1, lacks authentication on its remove RPCs (CWE-306). A remote attacker with no credentials can send forged requests to the coro_rpc port to force-delete any object, bypass lease checks, wipe keys matching a regex or clear the entire store, causing cache loss and request failures.
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 authentication vulnerability that allows unauthenticated attackers to force-delete any object via Remove, RemoveByRegex, RemoveAll and BatchRemove on the coro_rpc port. Attackers can send forged requests with the force flag set to bypass lease checks, wipe keys matching any regex, or clear the entire store, causing cache loss and request failures.
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-2026-106038
- 2026-10-06 Alias added: GHSA-j222-33gf-8mpg
- 2026-10-07 Priority changed: MEDIUM → LOW
- 2026-10-09 CISA SSVC decision points changed
- 2026-10-09 Priority changed: LOW → 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-2026-67384 Mooncake before 0.3.12 Out-of-Bounds Read via P2P Handshake readString CVSS 4.0HIGH 8.7
- TI-2026-65759 Mooncake transfer engine through 0.3.13.post1 Memory Exhaustion via Unbounded Notify Queue CVSS 4.0HIGH 8.7
Sources
- CVE-2026-106038 · CVE Program
- CVE-2026-106038 · NVD
- FIRST EPSS
- GHSA-j222-33gf-8mpg · GitHub Advisory Database · CC BY 4.0
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