{"cve":"CVE-2026-23603","nvd":{"published":"2026-08-13T17:17:21.770","modified":"2026-08-26T16:53:48.300","status":"Deferred","description":"Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","score":3.1},"cwes":["CWE-918"],"references":["https://blog.gitea.com/gitea-1.27.0-is-released/","https://github.com/go-gitea/gitea/releases/tag/v1.27.0","https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g","https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-23603","score":0.0029,"percentile":0.21555,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-x77v-q46j-393g","url":"https://osv.dev/vulnerability/GHSA-x77v-q46j-393g","summary":"Gitea: Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim","modified":"2026-07-27T17:11:33.698630427Z","packages":[{"ecosystem":"Go","name":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","ranges":["<1.27.0"],"fixed":["1.27.0"]}]},{"id":"GO-2026-6083","url":"https://osv.dev/vulnerability/GO-2026-6083","summary":"Gitea: Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim in gitea.dev","modified":"2026-07-27T17:00:24.926633412Z","packages":[{"ecosystem":"Go","name":"gitea.dev","purl":"pkg:golang/gitea.dev","ranges":["<1.27.0"],"fixed":["1.27.0"]}]}],"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."]}