{"id":"CVE-2026-54214","aliases":["EUVD-2026-54445","GHSA-xjch-93pr-7c7c"],"status":"published","title":"TeamDavid: Header Injection through the 'cType' URL parameter","description":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the \n“cType” URL parameter, which allows arbitrary modification of the \nContent-Type header in HTTP responses. Because the parameter does not \nproperly restrict control characters such as URL-encoded newlines \n(“%0a”) or colons, attackers can inject additional headers including \nextra Location headers into the server’s response. This results e.g. in \nan open redirect vulnerability. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00458,"percentile":0.40216,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2026-08-07T09:47:55Z","modified":"2026-10-24T16:10:00Z","products":[{"vendor":"tobit laboratories ag","product":"teamdavid"}],"references":[{"url":"https://chayns.net/77892-10814/tapp/763210?postId=11454","tags":["release-notes"]},{"url":"https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/","tags":["third-party-advisory","exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54214"},{"url":"https://david.tobit.software/releasenotes"},{"url":"https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative"},{"url":"https://github.com/advisories/GHSA-xjch-93pr-7c7c"}],"sources":{"cve":[{"id":"CVE-2026-54214","title":"TeamDavid: Header Injection through the 'cType' URL parameter","description":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the \n“cType” URL parameter, which allows arbitrary modification of the \nContent-Type header in HTTP responses. Because the parameter does not \nproperly restrict control characters such as URL-encoded newlines \n(“%0a”) or colons, attackers can inject additional headers including \nextra Location headers into the server’s response. This results e.g. in \nan open redirect vulnerability. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.","status":"published","published":"2026-08-07T09:47:55.176Z","modified":"2026-09-07T13:00:38.211Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T13:37:58.613221Z"}],"euvd":[{"id":"EUVD-2026-54445","description":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the \n“cType” URL parameter, which allows arbitrary modification of the \nContent-Type header in HTTP responses. Because the parameter does not \nproperly restrict control characters such as URL-encoded newlines \n(“%0a”) or colons, attackers can inject additional headers including \nextra Location headers into the server’s response. This results e.g. in \nan open redirect vulnerability. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.","status":"published","published":"2026-08-07T09:47:55Z","modified":"2026-09-07T13:00:38Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:30.668645Z"}],"ghsa":[{"id":"GHSA-xjch-93pr-7c7c","title":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection...","description":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the \n“cType” URL parameter, which allows arbitrary modification of the \nContent-Type header in HTTP responses. Because the parameter does not \nproperly restrict control characters such as URL-encoded newlines \n(“%0a”) or colons, attackers can inject additional headers including \nextra Location headers into the server’s response. This results e.g. in \nan open redirect vulnerability. This issue affects TeamDavid through Rollout 524.","status":"published","published":"2026-08-07T12:32:00Z","modified":"2026-09-07T15:34:48Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:11:27.182088Z"}],"nvd":[{"id":"CVE-2026-54214","description":"Tobit Laboratories AG TeamDavid's Webbox application is vulnerable to HTTP header injection through the \n“cType” URL parameter, which allows arbitrary modification of the \nContent-Type header in HTTP responses. Because the parameter does not \nproperly restrict control characters such as URL-encoded newlines \n(“%0a”) or colons, attackers can inject additional headers including \nextra Location headers into the server’s response. This results e.g. in \nan open redirect vulnerability. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.","status":"published","published":"2026-08-07T10:16:58.637Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:12:35.386166Z"}]}}