{"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":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-862"],"vendor":"CISA","product":"Malcolm","affected":["Malcolm < v26.06.0"],"published":"2026-09-11","updated":"2026-10-02","sourceUpdated":"2026-10-02T22:16:55.330","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"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01","label":"ics-cert@hq.dhs.gov"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T16:12:33.273539Z"},"epss":0.00181,"epssPercentile":0.07627,"scores":{"nvd":6.5,"cna":7.1},"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":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":215074,"id":"CVE-2026-90448","ts":1790980431722,"field":"cvss","old":"7.1","new":"6.5"},{"seq":215073,"id":"CVE-2026-90448","ts":1790980431722,"field":"severity","old":"high","new":"medium"}]}