{"id":"CVE-2026-91986","title":"gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs","summary":"gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof …","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-74","CWE-93"],"vendor":"GitoxideLabs","product":"gitoxide","affected":["gitoxide < 0.59.2"],"published":"2026-09-15","updated":"2026-09-21","sourceUpdated":"2026-09-21T20:17:39.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91986","references":[{"url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-rc7h-wp5f-w3g5","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gitoxide-gix-transport-before-0.59.2-cr-lf-nul-injection","label":"disclosure@vulncheck.com"},{"url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-rc7h-wp5f-w3g5","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91986.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-91986"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533967"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91986"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91986"}],"tags":["nvd","cve.org","csaf","vex","red-hat","exploit-available"],"epss":0.00203,"epssPercentile":0.10621,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T19:22:03.763119Z"},"ingestedAt":"2026-09-15T15:39:12.910Z","slug":"CVE-2026-91986","body":"## Overview\n\ngitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux AI (RHEL AI) 3 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux AI (RHEL AI) 3 · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91986.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":208773,"id":"CVE-2026-91986","ts":1790020370306,"field":"exploit_available","old":"false","new":"true"}]}