{"cve":"CVE-2020-15106","nvd":{"published":"2020-08-05T19:15:10.903","modified":"2026-06-17T02:56:03.950","status":"Modified","description":"In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-20"],"references":["https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/","https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"],"products":["etcd:etcd","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-15106","score":0.01256,"percentile":0.69531,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-m332-53r6-2w93","url":"https://osv.dev/vulnerability/GHSA-m332-53r6-2w93","summary":"etcd's WAL `ReadAll`  method vulnerable to an entry with large index causing panic","modified":"2026-09-10T03:49:49.732993941Z","packages":[{"ecosystem":"Go","name":"go.etcd.io/etcd/v3","purl":"pkg:golang/go.etcd.io/etcd/v3","ranges":["<3.3.23"],"fixed":["3.3.23"]},{"ecosystem":"Go","name":"go.etcd.io/etcd/v3","purl":"pkg:golang/go.etcd.io/etcd/v3","ranges":[">=3.4.0 <3.4.10"],"fixed":["3.4.10"]}]},{"id":"GHSA-p4g4-wgrh-qrg2","url":"https://osv.dev/vulnerability/GHSA-p4g4-wgrh-qrg2","summary":"Panic due to malformed WALs in go.etcd.io/etcd","modified":"2026-09-10T03:50:07.866746748Z","packages":[{"ecosystem":"Go","name":"go.etcd.io/etcd","purl":"pkg:golang/go.etcd.io/etcd","ranges":["<0.5.0-alpha.5.0.20200423152442-f4b650b51dc4"],"fixed":["0.5.0-alpha.5.0.20200423152442-f4b650b51dc4"]}]},{"id":"GO-2020-0005","url":"https://osv.dev/vulnerability/GO-2020-0005","summary":"Panic due to malformed WALs in go.etcd.io/etcd","modified":"2026-02-04T03:10:38.304879Z","packages":[{"ecosystem":"Go","name":"go.etcd.io/etcd","purl":"pkg:golang/go.etcd.io/etcd","ranges":["<0.5.0-alpha.5.0.20200423152442-f4b650b51dc4"],"fixed":["0.5.0-alpha.5.0.20200423152442-f4b650b51dc4"]}]}],"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."]}