{"id":"CVE-2026-16531","aliases":["DEBIAN-CVE-2026-16531","EUVD-2026-50980","GHSA-2g52-w93h-w9v5","SUSE-SU-2026:23064-1","SUSE-SU-2026:23174-1","SUSE-SU-2026:23277-1","SUSE-SU-2026:23316-1","SUSE-SU-2026:3505-1","SUSE-SU-2026:3506-1","SUSE-SU-2026:3507-1","SUSE-SU-2026:3508-1","UBUNTU-CVE-2026-16531","openSUSE-SU-2026:11490-1","openSUSE-SU-2026:21636-1"],"status":"published","title":"Pcp: pcp: arbitrary file creation via path traversal in pmproxy logger servlet","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00574,"percentile":0.4782,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-07-30T05:41:07Z","modified":"2026-11-10T17:46:17Z","fixes":[{"ecosystem":"Debian:14","package":"pcp","fixed_in":["7.2.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.3-1.1","6.0.5-1","6.1.0-1","6.1.1-1","6.2.0-1","6.2.0-1.1","6.2.0-1.1~exp1","6.2.1-1","6.2.2-1","6.3.0-1","6.3.1-1","6.3.3-1","6.3.4-1","6.3.5-1","6.3.6-1","6.3.7-1","6.3.8-1","7.0.0-1","7.0.1-1","7.0.2-1","7.0.3-1","7.0.4-1","7.0.5-1","7.1.0-1","7.1.1-1","7.1.2-1","7.1.3-2","7.1.4-1","7.1.5-1","7.2.0-1","7.2.1-2","7.2.2-1"]},{"source":"osv","ecosystem":"Debian:13","package":"pcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.3.8-1","7.0.0-1","7.0.1-1","7.0.2-1","7.0.3-1","7.0.4-1","7.0.5-1","7.1.0-1","7.1.1-1","7.1.2-1","7.1.3-2","7.1.4-1","7.1.5-1","7.2.0-1","7.2.1-2","7.2.2-1"]},{"source":"osv","ecosystem":"Debian:14","package":"pcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.0-1"}]}],"versions":["6.3.8-1","7.0.0-1","7.0.1-1","7.0.2-1","7.0.3-1","7.0.4-1","7.0.5-1","7.1.0-1","7.1.1-1","7.1.2-1","7.1.3-2","7.1.4-1","7.1.5-1"]},{"source":"osv","ecosystem":"SUSE:Linux 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16.0","package":"pcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-160000.4.1"}]}],"bundled":6}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat openshift container platform 4"},{"vendor":"red hat","product":"red hat openshift container platform 5"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:97299","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-16531","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506037","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16531"},{"url":"https://github.com/advisories/GHSA-2g52-w93h-w9v5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-16531","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623064-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1272922","tags":["report"]},{"url":"https://bugzilla.suse.com/1272923","tags":["report"]},{"url":"https://bugzilla.suse.com/1272924","tags":["report"]},{"url":"https://bugzilla.suse.com/1272925","tags":["report"]},{"url":"https://bugzilla.suse.com/1272926","tags":["report"]},{"url":"https://bugzilla.suse.com/1272927","tags":["report"]},{"url":"https://bugzilla.suse.com/1272928","tags":["report"]},{"url":"https://bugzilla.suse.com/1272930","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16524","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16526","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16529","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16530","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-16531","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623174-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623277-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623316-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263505-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263506-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263507-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263508-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-16531","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-16531","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-16531","title":"Pcp: pcp: arbitrary file creation via path traversal in pmproxy logger servlet","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T05:41:07.583Z","modified":"2026-11-10T17:46:17.823Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-10T18:39:47.416646Z"}],"euvd":[{"id":"EUVD-2026-50980","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T05:41:07Z","modified":"2026-11-10T17:46:17Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-10T19:22:12.693108Z"}],"ghsa":[{"id":"GHSA-2g52-w93h-w9v5","title":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy...","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T06:32:37Z","modified":"2026-11-10T18:32:14Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-10T18:56:11.243058Z"}],"nvd":[{"id":"CVE-2026-16531","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T06:25:03.277Z","modified":"2026-11-10T18:17:35.653Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-10T20:21:05.92738Z"}],"osv":[{"id":"DEBIAN-CVE-2026-16531","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T06:25:03.277Z","modified":"2026-11-11T09:47:44.104000354Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-11T10:35:40.696585Z"},{"id":"UBUNTU-CVE-2026-16531","description":"An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.","status":"published","published":"2026-07-30T06:25:00Z","modified":"2026-10-17T12:59:53.281790063Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"openSUSE-SU-2026:11490-1","title":"libpcp-devel-6.3.8-3.1 on GA media","description":"These are all security issues fixed in the libpcp-devel-6.3.8-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-08-10T00:00:00Z","modified":"2026-08-11T09:15:07.24598487Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21636-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-24T20:44:34Z","modified":"2026-08-27T18:23:12.79051376Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"SUSE-SU-2026:23064-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-11T11:11:14Z","modified":"2026-08-12T10:45:03.494336347Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23174-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-11T11:26:25Z","modified":"2026-08-22T18:23:33.714116369Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23277-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-24T20:47:16Z","modified":"2026-08-31T18:23:10.017170794Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23316-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-24T20:47:16Z","modified":"2026-09-10T18:23:09.684160859Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:3505-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- Command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- Command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-05T13:18:40Z","modified":"2026-08-06T11:15:06.524531431Z","updated_at":"2026-11-02T15:54:04.987808Z"},{"id":"SUSE-SU-2026:3506-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-05T13:19:25Z","modified":"2026-08-06T11:15:06.523640313Z","updated_at":"2026-11-02T15:54:04.987808Z"},{"id":"SUSE-SU-2026:3507-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-05T13:20:36Z","modified":"2026-08-06T11:15:06.521730808Z","updated_at":"2026-11-02T15:54:04.987808Z"},{"id":"SUSE-SU-2026:3508-1","title":"Security update for pcp","description":"This update for pcp fixes the following issues:\n\n- CVE-2026-16524: command injection in `linux_sockets` PMDA via `network.persocket.filter` (bsc#1272922).\n- CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd inheritance and missing peer credentials\n  (bsc#1272923).\n- CVE-2026-16527: missing authentication flags in pmproxy REST API (bsc#1272924).\n- CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS (bsc#1272925).\n- CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders (bsc#1272926).\n- CVE-2026-16531: path traversal via hostname in pmproxy logger servlet (bsc#1272927).\n- command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f` (bsc#1272928).\n- command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames (bsc#1272930).\n","status":"published","published":"2026-08-05T13:21:24Z","modified":"2026-08-06T11:15:06.570661661Z","updated_at":"2026-11-02T15:54:04.987808Z"}]}}