{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8784","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-05-17T09:59:14.863Z","datePublished":"2026-05-18T02:30:13.275Z","dateUpdated":"2026-05-18T12:24:18.988Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-05-18T02:30:13.275Z"},"title":"npitre cramfs-tools cramfsck.c change_file_status symlink","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-61","lang":"en","description":"Symlink Following"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-59","lang":"en","description":"Link Following"}]}],"affected":[{"vendor":"npitre","product":"cramfs-tools","versions":[{"version":"2.0","status":"affected"},{"version":"2.1","status":"affected"},{"version":"2.2","status":"affected"}],"cpes":["cpe:2.3:a:npitre:cramfs-tools:*:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file cramfsck.c. Performing a manipulation results in symlink following. The attack requires a local approach. The exploit is now public and may be used. The patch is named b4a3a695c9873f824907bd15659f2a6ac7667b4f. It is recommended to apply a patch to fix this issue."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":4.6,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.2,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.2,"vectorString":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":4,"vectorString":"AV:L/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:OF/RC:C"}}],"timeline":[{"time":"2026-05-17T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-05-17T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-05-17T12:04:24.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"nich0las (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/364408","name":"VDB-364408 | npitre cramfs-tools cramfsck.c change_file_status symlink","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/364408/cti","name":"VDB-364408 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/811897","name":"Submit #811897 | GNU cramfs-tools below v2.2 Symlink Following","tags":["third-party-advisory"]},{"url":"https://github.com/npitre/cramfs-tools/issues/13","tags":["exploit","issue-tracking"]},{"url":"https://github.com/npitre/cramfs-tools/issues/13#issuecomment-4306102583","tags":["issue-tracking"]},{"url":"https://github.com/npitre/cramfs-tools/commit/b4a3a695c9873f824907bd15659f2a6ac7667b4f","tags":["patch"]},{"url":"https://github.com/npitre/cramfs-tools/","tags":["product"]}],"tags":["x_open-source"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-18T12:24:11.194480Z","id":"CVE-2026-8784","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-18T12:24:18.988Z"}}]}}