{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-12118/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-12118"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["webMethods Integration (on prem)"],"_cs_severities":["critical"],"_cs_tags":["remote-code-execution","deserialization","ibm","cve-2026-12118"],"_cs_type":"advisory","_cs_vendors":["IBM"],"content_html":"\u003cp\u003eIBM has disclosed a critical security vulnerability, CVE-2026-12118, affecting the on-premises versions of IBM webMethods Integration, specifically versions 10.11 and 10.15. The vulnerability arises from the insecure deserialization of untrusted data (CWE-502). An unauthenticated, remote attacker can exploit this flaw to execute arbitrary code on the underlying host system. Given the CVSS score of 9.8, this vulnerability poses a significant risk to the availability, integrity, and confidentiality of affected infrastructure. Defending against this requires prompt application of vendor patches, as the vulnerability is considered automatable according to CISA-ADP analysis.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker performs reconnaissance to identify exposed IBM webMethods Integration servers on the network.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious serialized object containing a payload for remote code execution.\u003c/li\u003e\n\u003cli\u003eAttacker sends the serialized payload via an HTTP request to an endpoint that processes user-supplied objects.\u003c/li\u003e\n\u003cli\u003eThe application deserializes the untrusted data without proper validation.\u003c/li\u003e\n\u003cli\u003eThe deserialization process triggers the execution of the embedded malicious code within the application context.\u003c/li\u003e\n\u003cli\u003eThe payload grants the attacker unauthorized command execution capabilities on the server.\u003c/li\u003e\n\u003cli\u003eThe attacker establishes persistence or moves laterally within the network.\u003c/li\u003e\n\u003cli\u003eThe attacker achieves the final objective, such as exfiltration, ransomware deployment, or system takeover.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-12118 allows for full remote code execution on the target server. This enables attackers to gain unauthorized access to sensitive integration data, compromise connected backend systems, or disrupt critical business processes managed by the webMethods platform. If exploited, the impact is considered total, as the attacker gains the same level of access as the webMethods service account.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cp\u003ePrioritize the immediate remediation of this vulnerability across all internet-facing and internal IBM webMethods Integration instances.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eReview the official IBM security advisory (\u003ca href=\"https://www.ibm.com/support/pages/node/7278857\"\u003ehttps://www.ibm.com/support/pages/node/7278857\u003c/a\u003e) to identify the latest patch levels.\u003c/li\u003e\n\u003cli\u003eApply the vendor-provided patches for versions 10.11 and 10.15 immediately.\u003c/li\u003e\n\u003cli\u003eUntil patching is complete, restrict access to the webMethods integration management ports via network firewalls and web application firewalls to prevent unauthorized, unauthenticated access.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-30T19:30:16Z","date_published":"2026-07-30T19:30:16Z","id":"https://feed.craftedsignal.io/briefs/2026-07-ibm-webmethods-deserialization/","summary":"IBM webMethods Integration (on-premises) versions 10.11 and 10.15 contain a critical deserialization vulnerability (CVE-2026-12118) that enables unauthenticated remote code execution.","title":"Critical Deserialization Vulnerability in IBM webMethods Integration","url":"https://feed.craftedsignal.io/briefs/2026-07-ibm-webmethods-deserialization/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-12118","version":"https://jsonfeed.org/version/1.1"}