{"id":"CVE-2026-45773","state":"PUBLISHED","title":"Turborepo: Login callback CSRF/session fixation","description":"Turborepo is a high-performance build system for JavaScript and TypeScript codebases. Prior to 2.9.14, Turborepo's self-hosted login and SSO browser flows did not validate a CSRF state value on the localhost callback. While the CLI was waiting for authentication, a malicious web page could send a request to the local callback server with an attacker-controlled token. If accepted before the legitimate callback, the CLI could complete login with the wrong credentials. This affects users authenticating the turbo CLI against self-hosted remote cache/auth endpoints. Vercel-hosted login flows using device authorization are not affected. This vulnerability is fixed in 2.9.14.","publishedAt":"2026-05-15T15:51:38.066Z","updatedAt":"2026-05-15T16:45:06.076Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["vercel turborepo"],"affected":[{"vendor":"vercel","product":"turborepo","versions":[{"version":"< 2.9.14","status":"affected"}]}],"references":["https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r"],"weaknesses":["CWE-352","CWE-384"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45773.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45773","state":"PUBLISHED","datePublished":"2026-05-15T15:51:38.066Z","dateUpdated":"2026-05-15T16:45:06.076Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-13T07:45:21.251Z"},"containers":{"cna":{"title":"Turborepo: Login callback CSRF/session fixation","descriptions":[{"lang":"en","value":"Turborepo is a high-performance build system for JavaScript and TypeScript codebases. Prior to 2.9.14, Turborepo's self-hosted login and SSO browser flows did not validate a CSRF state value on the localhost callback. While the CLI was waiting for authentication, a malicious web page could send a request to the local callback server with an attacker-controlled token. If accepted before the legitimate callback, the CLI could complete login with the wrong credentials. This affects users authenticating the turbo CLI against self-hosted remote cache/auth endpoints. Vercel-hosted login flows using device authorization are not affected. This vulnerability is fixed in 2.9.14."}],"affected":[{"vendor":"vercel","product":"turborepo","versions":[{"version":"< 2.9.14","status":"affected"}]}],"references":[{"url":"https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r","name":"https://github.com/vercel/turborepo/security/advisories/GHSA-hcf7-66rw-9f5r","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":5.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-352","lang":"en","description":"CWE-352: Cross-Site Request Forgery (CSRF)","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-384","lang":"en","description":"CWE-384: Session Fixation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-15T15:51:38.066Z"},"source":{"advisory":"GHSA-hcf7-66rw-9f5r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-15T16:44:57.841414Z","id":"CVE-2026-45773","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-15T16:45:06.076Z"}}]}}}