{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-12548","sourceIdentifier":"secalert@redhat.com","published":"2026-07-21T19:17:09.440","lastModified":"2026-11-05T17:18:04.087","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents."},{"lang":"es","value":"Se encontró una falla de lectura fuera de límites de la pila en libsoup. Al analizar mensajes HTTP multipart, una discrepancia de tipo entero entre la función que llama y soup_headers_parse() puede causar que el parámetro de longitud sea truncado incorrectamente, lo que lleva a una lectura excesiva del búfer de la pila. Un atacante remoto podría usar esta falla para bloquear una aplicación que usa libsoup o potencialmente divulgar el contenido de la memoria de la pila."}],"affected":[{"source":"secalert@redhat.com","affectedData":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/a:redhat:enterprise_linux:10"]}]}],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L","baseScore":4.2,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":1.6,"impactScore":2.5}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-23T14:19:42.070603Z","id":"CVE-2026-12548","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*","matchCriteriaId":"C5BAC4F4-3ACD-4F4D-920C-F920FD2C5472"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"}]}]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-12548","source":"secalert@redhat.com","tags":["Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2489996","source":"secalert@redhat.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/work_items/512","source":"secalert@redhat.com","tags":["Exploit","Mitigation","Vendor Advisory"]},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/work_items/512","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Vendor Advisory"]}]}}