Previous ATX is not checked to be the newest valid ATX by Smesher when validating incoming ATX
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
go-spacemesh is a Go implementation of the Spacemesh protocol full node. Nodes can publish activations transactions (ATXs) which reference the incorrect previous ATX of the Smesher that created the ATX. ATXs are expected to form a single chain from the newest to the first ATX ever published by an identity. Allowing Smeshers to reference an earlier (but not the latest) ATX as previous breaks this protocol rule and can serve as an attack vector where Nodes are rewarded for holding their PoST data for less than one epoch but still being eligible for rewards. This vulnerability is fixed in go-spacemesh 1.5.2-hotfix1 and Spacemesh API 1.37.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| spacemeshos | go-spacemesh | before 1.5.2-hotfix1 | 1.5.2-hotfix1 | Patch available | CNA |
| — | github.com/spacemeshos/go-spacemesh (Go) | before 1.5.2-hotfix1 | 1.5.2-hotfix1 | Patch available | GHSA-jcqq-g64v-gcm7 |
| — | github.com/spacemeshos/api (Go) | before 1.37.1 | 1.37.1 | Patch available | GHSA-jcqq-g64v-gcm7 |
- go-spacemesh Vendorspacemeshos Affected before 1.5.2-hotfix1 Fixed in 1.5.2-hotfix1 Patch available CNA
- github.com/spacemeshos/go-spacemesh (Go) Vendor— Affected before 1.5.2-hotfix1 Fixed in 1.5.2-hotfix1 Patch available GHSA-jcqq-g64v-gcm7
- github.com/spacemeshos/api (Go) Vendor— Affected before 1.37.1 Fixed in 1.37.1 Patch available GHSA-jcqq-g64v-gcm7
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:spacemeshos:go-spacemesh:*:*:*:*:*:*:*:* | — | — | spacemeshos |
- cpe:2.3:a:spacemeshos:go-spacemesh:*:*:*:*:*:*:*:* Versions — — ·spacemeshos
Remediation
- Fix · CNA go-spacemesh (spacemeshos) Fixed in 1.5.2-hotfix1
- Fix · GHSA-jcqq-g64v-gcm7 github.com/spacemeshos/go-spacemesh (Go) Fixed in 1.5.2-hotfix1 Advisory →
- Fix · GHSA-jcqq-g64v-gcm7 github.com/spacemeshos/api (Go) Fixed in 1.37.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-34360
- 2026-10-03 Alias added: GHSA-jcqq-g64v-gcm7
References
Other 6
- https://github.com/spacemeshos/go-spacemesh/security/advisories/GHSA-jcqq-g64v-gcm7
- https://github.com/spacemeshos/api/commit/1d5bd972bbe225d024c3e0ae5214ddb6b481716e
- https://github.com/spacemeshos/go-spacemesh/commit/9aff88d54be809ac43d60e8a8b4d65359c356b87
- https://github.com/spacemeshos/go-spacemesh
- https://pkg.go.dev/vuln/GO-2024-2831
- https://spacemesh.io/blog/spacemesh-white-paper-1
Sources
- CVE-2024-34360 · CVE Program
- CVE-2024-34360 · NVD
- FIRST EPSS
- GHSA-jcqq-g64v-gcm7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences