{"id":"CVE-2026-126934","state":"PUBLISHED","title":"Zipline 4.3.2 before 4.8.0 Rate Limit Bypass via Spoofed X-Forwarded-For","description":"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.","publishedAt":"2026-11-11T22:53:19.421Z","updatedAt":"2026-11-11T22:53:19.421Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["diced zipline"],"affected":[{"vendor":"diced","product":"zipline","packageURL":"pkg:github/diced/zipline","defaultStatus":"unaffected","versions":[{"version":"4.3.2","status":"affected","lessThan":"4.8.0","versionType":"semver"}]}],"references":["https://github.com/diced/zipline/security/advisories/GHSA-v938-v8wg-9497","https://github.com/diced/zipline/commit/6bac7e6bb18cb37c1d09f91306c1ffbdca00097c","https://github.com/diced/zipline/releases/tag/v4.8.0","https://github.com/diced/zipline/blob/v4.7.0/src/server/index.ts#L58-L62","https://github.com/diced/zipline/blob/v4.7.0/src/server/startup/plugins.ts#L70-L73","https://www.vulncheck.com/advisories/zipline-4.3.2-before-4.8.0-rate-limit-bypass-via-spoofed-x-forwarded-for"],"weaknesses":["CWE-348"],"ingestedAt":"2026-11-11T22:58:06.658Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/126xxx/CVE-2026-126934.json","commit":"dea213d8d205443f279c7b3b37440ceada2a14f9","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-126934","state":"PUBLISHED","datePublished":"2026-11-11T22:53:19.421Z","dateUpdated":"2026-11-11T22:53:19.421Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-11T22:45:25.863Z"},"containers":{"cna":{"title":"Zipline 4.3.2 before 4.8.0 Rate Limit Bypass via Spoofed X-Forwarded-For","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"diced","product":"zipline","packageURL":"pkg:github/diced/zipline","defaultStatus":"unaffected","versions":[{"version":"4.3.2","status":"affected","lessThan":"4.8.0","versionType":"semver"}]}],"references":[{"url":"https://github.com/diced/zipline/security/advisories/GHSA-v938-v8wg-9497","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-v938-v8wg-9497)"},{"url":"https://github.com/diced/zipline/commit/6bac7e6bb18cb37c1d09f91306c1ffbdca00097c","tags":["patch"]},{"url":"https://github.com/diced/zipline/releases/tag/v4.8.0","tags":["release-notes"],"name":"zipline v4.8.0 Release Notes"},{"url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/index.ts#L58-L62","tags":["technical-description"]},{"url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/startup/plugins.ts#L70-L73","tags":["technical-description"]},{"url":"https://www.vulncheck.com/advisories/zipline-4.3.2-before-4.8.0-rate-limit-bypass-via-spoofed-x-forwarded-for","name":"VulnCheck Advisory: Zipline 4.3.2 before 4.8.0 Rate Limit Bypass via Spoofed X-Forwarded-For","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-348","lang":"en","description":"Use of Less Trusted Source","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-11-11T22:53:19.421Z"},"datePublic":"2026-09-27T00:00:00.000Z","credits":[{"lang":"en","value":"Sandipkumar sah","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}