{"id":"CVE-2026-90448","title":"A deployment mode intended to expose only read access to stored data proxies a set of application programming interface routes without restricting which request methods are allowed","summary":"A deployment mode intended to expose only read access to stored data proxies a set of application programming interface routes without restricting which request methods are allowed. One such route accepts a request that creates or overwr…","severity":"high","cvss":7.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-862"],"vendor":"CISA","product":"Malcolm","affected":["Malcolm < v26.06.0"],"published":"2026-09-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:39:09.490","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90448","references":[{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json","label":"ics-cert@hq.dhs.gov"}],"tags":["nvd","cve.org"],"epss":0.00207,"epssPercentile":0.11128,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T16:12:33.273539Z"},"cvssSource":"cna","ingestedAt":"2026-09-14T11:11:19.875Z","slug":"CVE-2026-90448","body":"## Overview\n\nA deployment mode intended to expose only read access to stored data proxies a set of application programming interface routes without restricting which request methods are allowed. One such route accepts a request that creates or overwrites a stored record, including an attacker-chosen identifier, using the application's own elevated backend credentials. This allows an authenticated user on a deployment intended to be read-only to forge or overwrite stored records that should not be modifiable in that deployment mode.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}