{"id":"CVE-2026-126934","summary":"Zipline 4.3.2 before 4.8.0 Rate Limit Bypass via Spoofed X-Forwarded-For","details":"Zipline 4.3.2 before 4.8.0 contains a rate limit bypass vulnerability that allows unauthenticated attackers to evade throttling by spoofing X-Forwarded-For headers when core.trustProxy is enabled. Attackers can send a different X-Forwarded-For value per request to obtain fresh rate-limit buckets, enabling unlimited guessing of login passwords, TOTP codes, and file and URL passwords.","aliases":["GHSA-v938-v8wg-9497"],"modified":"2026-11-13T02:47:25.806398841Z","published":"2026-11-11T22:53:19.421Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126934.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-348"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126934.json"},{"type":"ADVISORY","url":"https://github.com/diced/zipline/releases/tag/v4.8.0"},{"type":"ADVISORY","url":"https://github.com/diced/zipline/security/advisories/GHSA-v938-v8wg-9497"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126934"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/zipline-4.3.2-before-4.8.0-rate-limit-bypass-via-spoofed-x-forwarded-for"},{"type":"FIX","url":"https://github.com/diced/zipline/commit/6bac7e6bb18cb37c1d09f91306c1ffbdca00097c"},{"type":"ARTICLE","url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/index.ts#L58-L62"},{"type":"ARTICLE","url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/startup/plugins.ts#L70-L73"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/diced/zipline","events":[{"introduced":"2ad10e9a521096999a50c1ee051a141b18455767"},{"fixed":"bdee0e7250f7024ff9b4fcdcde71a9ef11a96b6d"},{"fixed":"6bac7e6bb18cb37c1d09f91306c1ffbdca00097c"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"4.3.2"},{"fixed":"4.8.0"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"range":[{"fixed":"6bac7e6bb18cb37c1d09f91306c1ffbdca00097c"}],"source":"REFERENCES_COMMIT"},{"original_tag":"v4.8.0","range":[{"fixed":"bdee0e7250f7024ff9b4fcdcde71a9ef11a96b6d"}],"source":"REFERENCES_TAG"}]}}],"versions":["v4.7.0","v4.6.5","v4.6.4","v4.6.3","v4.6.2","v4.6.1","v4.6.0","v4.5.3","v4.5.2","v4.5.1","v4.5.0","v4.4.2","v4.4.1","v4.4.0","v4.3.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126934.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}