{"cve":"CVE-2023-33964","nvd":{"published":"2023-05-31T18:15:09.437","modified":"2026-06-17T06:02:36.850","status":"Modified","description":"mx-chain-go is an implementation of the MultiversX blockchain protocol written in the Go language. Metachain cannot process a cross-shard miniblock. Prior to version 1.4.16, an invalid transaction with the wrong username on metachain is not treated correctly on the metachain transaction processor. This is strictly a processing issue that could have happened on MultiversX chain. If an error like this had occurred, the metachain would have stopped notarizing blocks from the shard chains. The resuming of notarization is possible only after applying a patched binary version. A patch in version 1.4.16 introduces `processIfTxErrorCrossShard` for the metachain transaction processor. There are no known workarounds for this issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-20"],"references":["https://github.com/multiversx/mx-chain-go/commit/97295471465f4b5f79e51b32f8b7111f8d921606","https://github.com/multiversx/mx-chain-go/security/advisories/GHSA-7xpv-4pm9-xch2","https://github.com/multiversx/mx-chain-go/commit/97295471465f4b5f79e51b32f8b7111f8d921606","https://github.com/multiversx/mx-chain-go/security/advisories/GHSA-7xpv-4pm9-xch2"],"products":["multiversx:mx-chain-go"],"source":"nvd","synced_at":"2026-10-19T21:38:24.161619714+00:00"},"epss":{"cve":"CVE-2023-33964","score":0.00569,"percentile":0.47161,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7xpv-4pm9-xch2","url":"https://osv.dev/vulnerability/GHSA-7xpv-4pm9-xch2","summary":"mx-chain-go does not treat invalid transaction with wrong username correctly","modified":"2026-09-10T03:50:02.162132662Z","packages":[{"ecosystem":"Go","name":"github.com/multiversx/mx-chain-go","purl":"pkg:golang/github.com/multiversx/mx-chain-go","ranges":["<1.4.16"],"fixed":["1.4.16"]}]},{"id":"GO-2023-1806","url":"https://osv.dev/vulnerability/GO-2023-1806","summary":"mx-chain-go does not treat invalid transaction with wrong username correctly in github.com/multiversx/mx-chain-go","modified":"2026-03-03T04:51:27.237463Z","packages":[{"ecosystem":"Go","name":"github.com/multiversx/mx-chain-go","purl":"pkg:golang/github.com/multiversx/mx-chain-go","ranges":["<1.4.16"],"fixed":["1.4.16"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}