{"affected":[{"defaultStatus":"unaffected","product":"Qt","source":"CNA: Qt","vendor":"qt","versions":[{"lessThanOrEqual":"6.8.8","status":"affected","version":"5.13.0","versionType":"python"},{"lessThanOrEqual":"6.11.2","status":"affected","version":"6.9.0","versionType":"python"},{"lessThan":"5.13.0","status":"unaffected","version":"0","versionType":"python"}]}],"cveId":"CVE-2026-103653","cwes":["CWE-125"],"description":"An out-of-bounds read vulnerability in the Qt CoAP message parsing (QCoapInternalReply::createFromFrame()) of the Qt CoAP module. Processing a malformed CoAP message can cause an application using Qt CoAP to crash (loss of availability) or to continue operating on incorrect data (potential loss of integrity).","epss":null,"exploits":[],"kev":null,"metrics":[{"score":6.7,"severity":"medium","source":"CNA: Qt","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:L/U:Amber","version":"4.0"}],"modifiedAt":1793691345306,"publishedAt":1793691345306,"references":[{"source":"CNA: Qt","tags":["vendor-advisory"],"url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-103653:"},{"source":"CNA: Qt","tags":["patch"],"url":"https://codereview.qt-project.org/c/qt/qtcoap/+/760652"},{"source":"CNA: Qt","tags":["patch"],"url":"https://codereview.qt-project.org/c/qt/qtcoap/+/761120"}],"remediation":[{"kind":"fix","source":"CNA: Qt","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://codereview.qt-project.org/c/qt/qtcoap/+/760652"},{"kind":"fix","source":"CNA: Qt","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://codereview.qt-project.org/c/qt/qtcoap/+/761120"}],"revision":"96f80741d7f274e389ce8af68c3e5bdc02a858fcd08006bf44e1da4794ecc2a8","sources":[{"modifiedAt":1793691345306,"name":"CNA: Qt","retrievedAt":1793693299971,"url":"https://www.cve.org/CVERecord?id=CVE-2026-103653"}],"ssvc":null,"status":"published","title":"Out-of-bounds read vulnerability in CoAP message parsing impacts Qt CoAP","updatedAt":1793693299971}