[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fERhD95iEW_ENEwFpy2wLssnfC5KYPwgl7bkMvP_Zoss":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"framework_notes":17,"status":23,"created_at":24,"published_at":25,"article":26,"tags":30,"podcasts":43,"controls":44},"44ef0150-b9f5-446d-a251-8173e90dceac","git-integer-truncation-flaw-enables-code-execution-via-malicious-repositories","05930bd1-3437-4bd5-8d95-71df7a028946","Git Integer Truncation Flaw Enables Code Execution via Malicious Repositories","A vulnerability in Git's index-handling logic allowed an integer truncation flaw to be exploited during recursive clones, enabling attackers to replace a submodule's .git file with a symbolic link pointing to malicious hooks or configurations. This means simply cloning a repository from an untrusted source could result in arbitrary code execution on the developer's machine — without any additional user interaction beyond the clone command itself. Developer workstations are high-value targets because they often hold credentials, signing keys, and access to production pipelines. The risk is amplified in CI\u002FCD environments where recursive clones are automated and run with elevated permissions. Patching to Git 2.56.1 or the relevant backported fix is essential to close this attack vector.","**Immediate actions:**\n- Upgrade Git to version 2.56.1 or apply the vendor-released backport patch for your current release series immediately.\n- Audit all CI\u002FCD pipelines and developer workstations to confirm the patched Git version is deployed before resuming recursive clones of untrusted repositories.\n\n**Operational safeguards:**\n- Restrict recursive clones (`--recurse-submodules`) to vetted, internally mirrored repositories rather than arbitrary external sources.\n- Run automated Git operations in isolated, ephemeral environments (e.g., containers) with no access to production credentials or signing keys.\n\n**Long-term improvements:**\n- Integrate Git version checks into your software composition analysis (SCA) and patch management tooling so future Git CVEs trigger automatic alerts.\n- Establish a policy requiring security review of any third-party repository before it is cloned recursively in automated pipelines.",[12,13,14,15,16],"CIS Control 7: Continuous Vulnerability Management (v8)","NIST SP 800-53 SI-2: Flaw Remediation","NIST CSF 2.0 PR.PS-01: Configuration Management","NIS2 Article 21(2)(e)","MITRE ATT&CK T1195.001: Compromise Software Dependencies and Development Tools",{"NIS2 Article 21(2)(e)":18,"NIST SP 800-53 SI-2: Flaw Remediation":19,"NIST CSF 2.0 PR.PS-01: Configuration Management":20,"CIS Control 7: Continuous Vulnerability Management (v8)":21,"MITRE ATT&CK T1195.001: Compromise Software Dependencies and Development Tools":22},"This point requires security in acquisition, development, and maintenance including vulnerability handling, directly covering the need to track and remediate flaws in development tools such as Git.","SI-2 mandates identifying, reporting, and correcting software flaws in a timely manner, which would have ensured Git was patched before malicious repositories could exploit this vulnerability.","This category calls for maintaining secure configurations of software, which includes keeping developer tooling like Git updated to versions free of known exploitable flaws.","CIS Control 7 requires organizations to continuously assess and remediate known vulnerabilities; applying the Git patch promptly would have directly closed this integer truncation flaw before exploitation.","This technique covers attackers compromising tools used in the software development pipeline; a malicious repository exploiting Git during a recursive clone fits precisely within this attack pattern.","published","2026-11-10T20:21:01.157611+00:00","2026-11-10T20:21:01.14+00:00",{"id":7,"url":27,"slug":28,"title":29},"https:\u002F\u002Fthehackernews.com\u002F2026\u002F11\u002Fgit-patches-flaw-that-lets-malicious.html","git-patches-flaw-that-lets-malicious-repositories-execute-code-during-recursive-98e4d7","Git Patches Flaw That Lets Malicious Repositories Execute Code During Recursive Clones",[31,37],{"id":32,"name":33,"slug":34,"description":35,"color":36},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":38,"name":39,"slug":40,"description":41,"color":42},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",[],[45,48,52],{"slug":40,"name":46,"problem":47},"Automated patch management","Known holes get closed in days, not months.",{"slug":49,"name":50,"problem":51},"endpoint-detection-response","Endpoint detection and response (EDR and XDR)","Malware and hands-on-keyboard attackers on laptops and servers get spotted and stopped.",{"slug":53,"name":54,"problem":55},"software-supply-chain","Software supply chain security","Malicious and vulnerable open-source packages are caught before they ship."]