{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-52958 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-52958 is a critical memory corruption vulnerability in Linux kernel, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-52958 and fix it if it is affected.\n\nWhat it is: CVE-2026-52958 is a critical memory corruption vulnerability in Linux kernel, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-52958 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2026-52958/ (Markdown: https://insights.sbomify.com/CVE-2026-52958/index.md)","id":"CVE-2026-52958","markdown":"https://insights.sbomify.com/CVE-2026-52958/index.md","name":"CVE-2026-52958","record":{"aliases":["BELL-CVE-2026-52958","DEBIAN-CVE-2026-52958","GHSA-xhq7-864q-xxj8","ROOT-OS-DEBIAN-11-CVE-2026-52958","ROOT-OS-DEBIAN-12-CVE-2026-52958","ROOT-OS-UBUNTU-2204-CVE-2026-52958","ROOT-OS-UBUNTU-2404-CVE-2026-52958","UBUNTU-CVE-2026-52958"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A corrupted Ceph OSD map message can trigger an out-of-bounds memory access in the Linux kernel, potentially leading to system crashes or arbitrary code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in osdmap_decode()\n\nWhen decoding osd_state and osd_weight from an incoming osdmap in\nosdmap_decode(), both are decoded for each osd, i.e., map-\u003emax_osd\ntimes. The ceph_decode_need() check only accounts for\nsizeof(*map-\u003eosd_weight) once. This can potentially result in an\nout-of-bounds memory access if the incoming message is corrupted such\nthat the max_osd value exceeds the actual content of the osdmap message.\n\nThis patch fixes the issue by changing the corresponding part in the\nceph_decode_need() check to account for\nmap-\u003emax_osd*sizeof(*map-\u003eosd_weight).","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":"libceph: Fix potential out-of-bounds access in osdmap_decode()","id":"CVE-2026-52958","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"virt: sev-guest: Do not use host-controlled page order in cleanup path","id":"CVE-2026-52959"},"packages":[],"prev":{"headline":"libceph: Fix potential null-ptr-deref in decode_choose_args()","id":"CVE-2026-52957"},"products":["Linux"],"published":"2026-06-24","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A corrupted Ceph OSD map message can trigger an out-of-bounds memory access in the Linux kernel, potentially leading to system crashes or arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2026-52958/"}