{"items":[{"id":"NVI-00009159","kind":"vulnerability","title":"filelock: SoftReadWriteLock follows a lock tree swapped in after its first acquire and writes lock records into directories of the user running the lock","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-wfhq-q4j2-c37m","CVE-2026-112941"],"plain_summary":"GitHub lists this reviewed advisory for filelock. 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This report has not examined your application.","related_sources":[{"id":"sr-d5ab001c854d4fb849a76ce44c8a6f0b","url":"https://github.com/advisories/GHSA-wfhq-q4j2-c37m","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wfhq-q4j2-c37m","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-06f5ce56bb59fbb8f356aa14a1e49ae2","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112941","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-112941","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:44.915Z"},{"id":"sr-045553e24dffb1b1ca0f058bc666ed9b","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-112941","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.630Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d5ab001c854d4fb849a76ce44c8a6f0b"],"technology":"filelock","known_exclusions":[],"conditions_summary":"`SoftReadWriteLock` (and `AsyncSoftReadWriteLock`, which wraps one) checks once per lock object, by name, that `.rw`, `.rw/gen` and `.rw/holders` are real directories and not symbolic links (files that redirect to another path). It then keeps only a boolean. Every later record operation resolves the full path again, and `O_NOFOLLOW` (a flag that makes an open fail when the final name is a symbolic link) protects the last component only. Another local user (the other user below) who can write the directory holding the lock, or who created `.rw` first in a sticky directory such as `/tmp` (the sticky bit is a directory flag that lets only a file's owner rename or remove it), can put a tree under that name whose `gen` or `holders` is a symbolic link into a directory of the user running the lock (the lock user below).\n\nA long-running process of the lock user that has already passed the check then creates, renames over and deletes files there with the lock user's privileges, including in `0700` directories the other user cannot open. The names and bytes are filelock's own lock records, not chosen by the other user. The scanner's reproducer replaces `.git/HEAD` in ","public_affected_ranges":[">= 4.1.0, <= 4.2.0"]}],"null_published_at":"2026-11-07T07:07:42.548Z","source_updated_at":"2026-10-28T21:09:10.000Z","source_disclosed_at":"2026-10-28T21:09:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00009159","kind":"vulnerability","title":"filelock: SoftReadWriteLock follows a lock tree swapped in after its first acquire and writes lock records into directories of the user running the lock","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-wfhq-q4j2-c37m","CVE-2026-112941"],"plain_summary":"GitHub lists this reviewed advisory for filelock. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-112941","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d5ab001c854d4fb849a76ce44c8a6f0b"],"technology":"filelock","known_exclusions":[],"conditions_summary":"`SoftReadWriteLock` (and `AsyncSoftReadWriteLock`, which wraps one) checks once per lock object, by name, that `.rw`, `.rw/gen` and `.rw/holders` are real directories and not symbolic links (files that redirect to another path). It then keeps only a boolean. Every later record operation resolves the full path again, and `O_NOFOLLOW` (a flag that makes an open fail when the final name is a symbolic link) protects the last component only. Another local user (the other user below) who can write the directory holding the lock, or who created `.rw` first in a sticky directory such as `/tmp` (the sticky bit is a directory flag that lets only a file's owner rename or remove it), can put a tree under that name whose `gen` or `holders` is a symbolic link into a directory of the user running the lock (the lock user below).\n\nA long-running process of the lock user that has already passed the check then creates, renames over and deletes files there with the lock user's privileges, including in `0700` directories the other user cannot open. The names and bytes are filelock's own lock records, not chosen by the other user. 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This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-28T21:09:10.000Z","value":"3.3 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-d5ab001c854d4fb849a76ce44c8a6f0b"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.131%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.02695. Missing scores are unknown.","source_id":"sr-5102335312416663cef6a642c14d8ae7"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d5ab001c854d4fb849a76ce44c8a6f0b","url":"https://github.com/advisories/GHSA-wfhq-q4j2-c37m","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. 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Every later record operation resolves the full path again, and `O_NOFOLLOW` (a flag that makes an open fail when the final name is a symbolic link) protects the last component only. Another local user (the other user below) who can write the directory holding the lock, or who created `.rw` first in a sticky directory such as `/tmp` (the sticky bit is a directory flag that lets only a file's owner rename or remove it), can put a tree under that name whose `gen` or `holders` is a symbolic link into a directory of the user running the lock (the lock user below).\n\nA long-running process of the lock user that has already passed the check then creates, renames over and deletes files there with the lock user's privileges, including in `0700` directories the other user cannot open. The names and bytes are filelock's own lock records, not chosen by the other user. The scanner's reproducer replaces `.git/HEAD` in ","public_affected_ranges":[">= 4.1.0, <= 4.2.0"]}],"null_published_at":"2026-10-31T23:18:17.290Z","source_updated_at":"2026-10-28T21:09:10.000Z","source_disclosed_at":"2026-10-28T21:09:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00009159","kind":"vulnerability","title":"filelock: SoftReadWriteLock follows a lock tree swapped in after its first acquire and writes lock records into directories of the user running the lock","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-wfhq-q4j2-c37m","CVE-2026-112941"],"plain_summary":"GitHub lists this reviewed advisory for filelock. 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Every later record operation resolves the full path again, and `O_NOFOLLOW` (a flag that makes an open fail when the final name is a symbolic link) protects the last component only. Another local user (the other user below) who can write the directory holding the lock, or who created `.rw` first in a sticky directory such as `/tmp` (the sticky bit is a directory flag that lets only a file's owner rename or remove it), can put a tree under that name whose `gen` or `holders` is a symbolic link into a directory of the user running the lock (the lock user below).\n\nA long-running process of the lock user that has already passed the check then creates, renames over and deletes files there with the lock user's privileges, including in `0700` directories the other user cannot open. The names and bytes are filelock's own lock records, not chosen by the other user. The scanner's reproducer replaces `.git/HEAD` in ","public_affected_ranges":[">= 4.1.0, <= 4.2.0"]}],"null_published_at":"2026-10-31T22:13:31.288Z","source_updated_at":"2026-10-28T21:09:10.000Z","source_disclosed_at":"2026-10-28T21:09:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:56:08.420Z"}],"next_cursor":null,"snapshot_revision":"42594"}