{"apiVersion":"1.0","identifier":"CVE-2026-56864","description":"A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious module content that cannot be detected by evaluating the transparency log. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ && go mod tidy","publishedAt":"2026-08-13T22:17:22","lastModifiedAt":"2026-08-14T17:19:14","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56864","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","epssProbability":0.00298,"riskScore":0.77,"affectedProduct":"Go","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-56864","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-56864","en":"https://www.redsauce.net/en/cves/CVE-2026-56864","fr":"https://www.redsauce.net/fr/cves/CVE-2026-56864","pt":"https://www.redsauce.net/pt/cves/CVE-2026-56864","de":"https://www.redsauce.net/de/cves/CVE-2026-56864","sk":"https://www.redsauce.net/sk/cves/CVE-2026-56864","el":"https://www.redsauce.net/el/cves/CVE-2026-56864"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-56864"}}