{"id":"CVE-2026-44937","aliases":["GHSA-jmf4-m7j9-g72r","GO-2026-5874"],"url":"https://o3.security/vulnerability/CVE-2026-44937","summary":"SUSE Rancher Fleet had an Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components","details":"Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the system.","published":"2026-07-06T09:52:18.659Z","modified":"2026-08-12T03:51:47.960370128Z","cvss":null,"epss":{"score":0.00382,"percentile":0.31532,"asOf":"2026-08-19"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/rancher/fleet","fixedVersion":"0.15.2"},{"ecosystem":"Go","name":"github.com/rancher/fleet","fixedVersion":"0.14.6"},{"ecosystem":"Go","name":"github.com/rancher/fleet","fixedVersion":"0.13.11"},{"ecosystem":"Go","name":"github.com/rancher/fleet","fixedVersion":"0.12.15"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/rancher/fleet/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44937.json"},{"type":"ADVISORY","url":"https://github.com/rancher/fleet/security/advisories/GHSA-jmf4-m7j9-g72r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44937"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:47.960370128Z"}}