{"id":"CVE-2026-1536","title":"Libsoup: libsoup: http header injection or response splitting via crlf injection in content-disposition header","summary":"A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTT…","severity":"medium","cvss":5.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-93"],"vendor":"Red Hat","product":"libsoup3","affected":["libsoup3 (all versions)","libsoup (all versions)","libsoup (all versions)","libsoup (all versions)","libsoup (all versions)"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-01-28T16:10:03.699999Z"},"published":"2026-01-28","updated":"2026-11-05","sourceUpdated":"2026-11-05T16:40:34.334Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-1536","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-1536"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433834","label":"RHBZ#2433834"},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/486"}],"tags":["cve.org"],"epss":0.00344,"epssPercentile":0.281,"ingestedAt":"2026-11-05T22:38:31.377Z","slug":"CVE-2026-1536","body":"## Overview\n\nA flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction.\n\n## Affected\n\n- `libsoup3 (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":31.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}