{"id":"CVE-2026-44597","aliases":["DEBIAN-CVE-2026-44597","EUVD-2026-28231","GHSA-94jg-w625-jq92","MGASA-2026-0187","UBUNTU-CVE-2026-44597","openSUSE-SU-2026:10735-1","openSUSE-SU-2026:20709-1"],"status":"published","title":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a...","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka 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cts":[{"vendor":"torproject","product":"tor"}],"references":[{"url":"https://forum.torproject.org/c/news/tor-release-announcement/28","tags":["Release Notes","web","report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/05/06/8","tags":["Mailing List","Third Party Advisory","web","report"]},{"url":"https://gitlab.torproject.org/tpo/core/tor/-/work_items/41254","tags":["Broken Link","web","report"]},{"url":"https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481","tags":["Patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44597","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-94jg-w625-jq92"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44597.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-44597","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0187.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35486","tags":["report"]},{"url":"https://gitlab.torproject.org/tpo/core/tor/-/blob/tor-0.4.8.25/ReleaseNotes?ref_type=tags#L5","tags":["web"]},{"url":"https://gitlab.torproject.org/tpo/core/tor/-/blob/tor-0.4.9.8/ReleaseNotes?ref_type=tags#L5","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2026-44597","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-44597","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44597","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44599","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44600","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44601","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44602","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44603","tags":["web"]},{"url":"https://bugzilla.suse.com/1264341","tags":["report"]},{"url":"https://bugzilla.suse.com/1264342","tags":["report"]},{"url":"https://bugzilla.suse.com/1264343","tags":["report"]},{"url":"https://bugzilla.suse.com/1264344","tags":["report"]},{"url":"https://bugzilla.suse.com/1264345","tags":["report"]},{"url":"https://bugzilla.suse.com/1264346","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-44597","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T00:56:47.32Z","modified":"2026-05-07T13:12:29.516Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-28231","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T00:56:47Z","modified":"2026-05-07T13:12:29Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T19:05:15.366699Z"}],"ghsa":[{"id":"GHSA-94jg-w625-jq92","title":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a...","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T03:31:21Z","modified":"2026-05-07T03:31:27Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T15:07:56.440319Z"}],"nvd":[{"id":"CVE-2026-44597","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T01:16:01.163Z","modified":"2026-10-26T19:10:00.163Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T14:12:17.418622Z"}],"osv":[{"id":"CVE-2026-44597","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T00:56:47.32Z","modified":"2026-10-28T02:30:32.637466423Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T15:45:05.172514Z"},{"id":"DEBIAN-CVE-2026-44597","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T01:16:01.163Z","modified":"2026-10-27T09:47:37.296533339Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:55.669088Z"},{"id":"UBUNTU-CVE-2026-44597","description":"Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.","status":"published","published":"2026-05-07T01:16:00Z","modified":"2026-10-17T13:00:08.721831955Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T16:56:22.075798Z"},{"id":"MGASA-2026-0187","title":"Updated tor packages fix security issues","description":"This update provides lots of security issues fixed by upstream since our\ncurrent version.  Please see the links for details.\n","status":"published","published":"2026-06-10T05:07:06Z","modified":"2026-06-10T05:15:04.390643763Z","updated_at":"2026-11-02T15:49:43.178336Z"},{"id":"openSUSE-SU-2026:10735-1","title":"tor-0.4.9.8-1.1 on GA media","description":"These are all security issues fixed in the tor-0.4.9.8-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-05-08T00:00:00Z","modified":"2026-05-09T07:46:38.630744Z","updated_at":"2026-11-02T16:58:38.415593Z"},{"id":"openSUSE-SU-2026:20709-1","title":"Security update for tor","description":"This update for tor fixes the following issues:\n\nChanges in tor:\n\n- Update to 0.4.9.8\n  * Fix out-of-bounds read (boo#1264341, CVE-2026-44597, TROVE-2026-011)\n  * Do not attempt or accept BEGIN_DIR via conflux legs\n    (boo#1264342, CVE-2026-44599,TROVE-2026-008)\n  * Adjust conflux out-of-order queue accounting when clearing a queue\n    (boo#1264343, CVE-2026-44600, TROVE-2026-010)\n  * Fix a client-side crash caused by double-close of a circuit while\n    under circuit queue memory pressure\n    (boo#1264344, CVE-2026-44601, TROVE-2026-009)\n  * Fix null pointer dereference when receiving a CERT cell out of\n    order (boo#1264345, CVE-2026-44602, TROVE-2026-006)\n  * Fix off-by-one out-of-bounds read if a malformed BEGIN cell is\n    received (boo#1264346, CVE-2026-44603, TROVE-2026-007)\n\n- upate to 0.4.9.5:\n  * first stable release in the 0.4.9 series\n  * introduces a new circuit-level encryption design for better\n    client security\n  * introduce a more scalable way for large relay operators to\n    annotate which relays they run so clients can avoid using too\n    many of them in a single circuit\n","status":"published","published":"2026-05-09T08:44:51Z","modified":"2026-05-11T08:15:34.311551Z","updated_at":"2026-11-02T16:58:41.463445Z"}]}}