CVE-2024-34360Previous ATX is not checked to be the newest valid ATX by Smesher when validating incoming ATX
- 8.2HighCVSS base score
- 0.73%Exploitation in 30 daysEPSS · top 45% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By GitHub_M
- 8 days later
· 8 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| NVDNVD · Deferred | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.73% · top 45% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.
Affected products
- affected < 1.5.2-hotfix1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/spacemeshos/apiGHSA-jcqq-g64v-gcm7 (opens in a new tab)
- Gogithub.com/spacemeshos/go-spacemeshGHSA-jcqq-g64v-gcm7 (opens in a new tab)
References
References3
- https://github.com/spacemeshos/go-spacemesh/security/advisories/GHSA-jcqq-g64v-gcm7 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/spacemeshos/api/commit/1d5bd972bbe225d024c3e0ae5214ddb6b481716e (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/spacemeshos/go-spacemesh/commit/9aff88d54be809ac43d60e8a8b4d65359c356b87 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-1663 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jcqq-g64v-gcm7 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-34360)Record last updated .