{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-107708 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-107708 is a medium-severity vulnerability in MIT krb5, published on 8 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-107708 and fix it if it is affected.\n\nWhat it is: CVE-2026-107708 is a medium-severity vulnerability in MIT krb5, published on 8 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-107708 in the wild and no public exploit code.\n\nAffected product: MIT krb5. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-107708/ (Markdown: https://insights.sbomify.com/CVE-2026-107708/index.md)","id":"CVE-2026-107708","markdown":"https://insights.sbomify.com/CVE-2026-107708/index.md","name":"CVE-2026-107708","record":{"aliases":["AZL-106836","BELL-CVE-2026-107708","DEBIAN-CVE-2026-107708","ECHO-1587-b13a-e744","GHSA-wc3c-9xc9-26g8","UBUNTU-CVE-2026-107708"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Kerberos KDC","requires_auth":"high_privilege","summary":"A malicious cross-realm KDC can crash the MIT Kerberos KDC by sending a malformed S4U2Proxy request, causing denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's get_pac_princ_with_realm() that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a malformed client name to crash krb5kdc and deny authentication.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"MIT krb5 through 1.22.2 KDC NULL Pointer Dereference via S4U2Proxy PAC","id":"CVE-2026-107708","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Bower decompress-zip has a path traversal vulnerability","id":"CVE-2026-107709"},"packages":[],"prev":{"headline":"Intego Antivirus through 3.0.0.1 Local Privilege Escalation via Optimization Module Junction","id":"CVE-2026-107707"},"products":["krb5"],"published":"2026-10-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["MIT"]},"summary":"A malicious cross-realm KDC can crash the MIT Kerberos KDC by sending a malformed S4U2Proxy request, causing denial of service.","url":"https://insights.sbomify.com/CVE-2026-107708/"}