{"items":[{"id":"NVI-00011958","kind":"vulnerability","title":"Mako: Path traversal via drive-letter URI on Windows in TemplateLookup","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-5639-2j2p-m4mx","CVE-2026-102991"],"plain_summary":"GitHub lists this reviewed advisory for Mako. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-02924d05a6846a239a27b80c42007cc3"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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":"2026-10-05T23:42:03.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6f944b929e487f0cced5f063be553917"},{"kind":"CVSS","as_of":"2026-09-30T20:17:26.973Z","value":"6.5 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-44d2abc12eb937ff3134c355ac93ff72"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.356%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.29486. Missing scores are unknown.","source_id":"sr-02924d05a6846a239a27b80c42007cc3"}],"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-6f944b929e487f0cced5f063be553917","url":"https://github.com/advisories/GHSA-5639-2j2p-m4mx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5639-2j2p-m4mx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"},{"id":"sr-44d2abc12eb937ff3134c355ac93ff72","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102991","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-102991","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:04.487Z"},{"id":"sr-02924d05a6846a239a27b80c42007cc3","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-2026-102991","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.624Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6f944b929e487f0cced5f063be553917"],"technology":"Mako","known_exclusions":[],"conditions_summary":"## Summary\n\nOn Windows, a `TemplateLookup` URI beginning with a drive designator (e.g. `C:/../../secret.txt` or `C:\\..\\..\\secret.txt`) bypasses the directory traversal check in `Template.__init__`, allowing reads of files outside the configured template directory.\n\nThis is a third, independent instance of the root cause behind CVE-2026-41205 (the `//` prefix) and CVE-2026-44307 (the backslash form). Both of those fixes normalized a separator *spelling*. Neither addressed the other way `posixpath` and `ntpath` disagree: the drive designator. Both prior fixes remain effective on their own terms; this variant survives them for an independent reason.\n\n## Details\n\nThe root cause is the same `posixpath` / `os.path` mismatch: resolution is done with `posixpath`, confinement is checked with `os.path`, which is `ntpath` on Windows.\n\n```\n# mako/lookup.py -- resolution\n247:  srcfile = posixpath.normpath(posixpath.join(dir_, u))   # posixpath, always\n248:  if os.path.isfile(srcfile):                             # ntpath on Windows\n\n# mako/template.py -- confinement\n268:  u_norm = os.path.normpath(u_norm)                       # ntpath on Windows\n269:  if u_norm.startswith(\"..\"):               ","public_affected_ranges":["<= 1.4.1"]}],"null_published_at":"2026-11-07T07:07:42.527Z","source_updated_at":"2026-10-05T23:42:03.000Z","source_disclosed_at":"2026-10-05T23:42:02.000Z","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":"2026-11-01T00:59:16.959Z"},{"id":"NVI-00011958","kind":"vulnerability","title":"Mako: Path traversal via drive-letter URI on Windows in TemplateLookup","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-5639-2j2p-m4mx","CVE-2026-102991"],"plain_summary":"GitHub lists this reviewed advisory for Mako. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1ba3bd0649063ccaff11cdec284ef552"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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":"2026-10-05T23:42:03.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6f944b929e487f0cced5f063be553917"},{"kind":"CVSS","as_of":"2026-09-30T20:17:26.973Z","value":"6.5 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-44d2abc12eb937ff3134c355ac93ff72"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.356%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.29351. Missing scores are unknown.","source_id":"sr-1ba3bd0649063ccaff11cdec284ef552"}],"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-6f944b929e487f0cced5f063be553917","url":"https://github.com/advisories/GHSA-5639-2j2p-m4mx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5639-2j2p-m4mx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"},{"id":"sr-44d2abc12eb937ff3134c355ac93ff72","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102991","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-102991","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:04.487Z"},{"id":"sr-1ba3bd0649063ccaff11cdec284ef552","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-2026-102991","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.063Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6f944b929e487f0cced5f063be553917"],"technology":"Mako","known_exclusions":[],"conditions_summary":"## Summary\n\nOn Windows, a `TemplateLookup` URI beginning with a drive designator (e.g. `C:/../../secret.txt` or `C:\\..\\..\\secret.txt`) bypasses the directory traversal check in `Template.__init__`, allowing reads of files outside the configured template directory.\n\nThis is a third, independent instance of the root cause behind CVE-2026-41205 (the `//` prefix) and CVE-2026-44307 (the backslash form). Both of those fixes normalized a separator *spelling*. Neither addressed the other way `posixpath` and `ntpath` disagree: the drive designator. Both prior fixes remain effective on their own terms; this variant survives them for an independent reason.\n\n## Details\n\nThe root cause is the same `posixpath` / `os.path` mismatch: resolution is done with `posixpath`, confinement is checked with `os.path`, which is `ntpath` on Windows.\n\n```\n# mako/lookup.py -- resolution\n247:  srcfile = posixpath.normpath(posixpath.join(dir_, u))   # posixpath, always\n248:  if os.path.isfile(srcfile):                             # ntpath on Windows\n\n# mako/template.py -- confinement\n268:  u_norm = os.path.normpath(u_norm)                       # ntpath on Windows\n269:  if u_norm.startswith(\"..\"):               ","public_affected_ranges":["<= 1.4.1"]}],"null_published_at":"2026-11-04T10:04:35.946Z","source_updated_at":"2026-10-05T23:42:03.000Z","source_disclosed_at":"2026-10-05T23:42:02.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:59:16.959Z"},{"id":"NVI-00011958","kind":"vulnerability","title":"Mako: Path traversal via drive-letter URI on Windows in TemplateLookup","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5639-2j2p-m4mx","CVE-2026-102991"],"plain_summary":"GitHub lists this reviewed advisory for Mako. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1ba3bd0649063ccaff11cdec284ef552"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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":"2026-10-05T23:42:03.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6f944b929e487f0cced5f063be553917"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.356%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.29351. Missing scores are unknown.","source_id":"sr-1ba3bd0649063ccaff11cdec284ef552"}],"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-6f944b929e487f0cced5f063be553917","url":"https://github.com/advisories/GHSA-5639-2j2p-m4mx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5639-2j2p-m4mx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"},{"id":"sr-1ba3bd0649063ccaff11cdec284ef552","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-2026-102991","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.063Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6f944b929e487f0cced5f063be553917"],"technology":"Mako","known_exclusions":[],"conditions_summary":"## Summary\n\nOn Windows, a `TemplateLookup` URI beginning with a drive designator (e.g. `C:/../../secret.txt` or `C:\\..\\..\\secret.txt`) bypasses the directory traversal check in `Template.__init__`, allowing reads of files outside the configured template directory.\n\nThis is a third, independent instance of the root cause behind CVE-2026-41205 (the `//` prefix) and CVE-2026-44307 (the backslash form). Both of those fixes normalized a separator *spelling*. Neither addressed the other way `posixpath` and `ntpath` disagree: the drive designator. Both prior fixes remain effective on their own terms; this variant survives them for an independent reason.\n\n## Details\n\nThe root cause is the same `posixpath` / `os.path` mismatch: resolution is done with `posixpath`, confinement is checked with `os.path`, which is `ntpath` on Windows.\n\n```\n# mako/lookup.py -- resolution\n247:  srcfile = posixpath.normpath(posixpath.join(dir_, u))   # posixpath, always\n248:  if os.path.isfile(srcfile):                             # ntpath on Windows\n\n# mako/template.py -- confinement\n268:  u_norm = os.path.normpath(u_norm)                       # ntpath on Windows\n269:  if u_norm.startswith(\"..\"):               ","public_affected_ranges":["<= 1.4.1"]}],"null_published_at":"2026-11-01T14:34:14.102Z","source_updated_at":"2026-10-05T23:42:03.000Z","source_disclosed_at":"2026-10-05T23:42:02.000Z","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":"2026-11-01T00:59:16.959Z"},{"id":"NVI-00011958","kind":"vulnerability","title":"Mako: Path traversal via drive-letter URI on Windows in TemplateLookup","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5639-2j2p-m4mx","CVE-2026-102991"],"plain_summary":"GitHub lists this reviewed advisory for Mako. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-6f944b929e487f0cced5f063be553917"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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":"2026-10-05T23:42:03.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6f944b929e487f0cced5f063be553917"}],"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-6f944b929e487f0cced5f063be553917","url":"https://github.com/advisories/GHSA-5639-2j2p-m4mx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5639-2j2p-m4mx","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6f944b929e487f0cced5f063be553917"],"technology":"Mako","known_exclusions":[],"conditions_summary":"## Summary\n\nOn Windows, a `TemplateLookup` URI beginning with a drive designator (e.g. `C:/../../secret.txt` or `C:\\..\\..\\secret.txt`) bypasses the directory traversal check in `Template.__init__`, allowing reads of files outside the configured template directory.\n\nThis is a third, independent instance of the root cause behind CVE-2026-41205 (the `//` prefix) and CVE-2026-44307 (the backslash form). Both of those fixes normalized a separator *spelling*. Neither addressed the other way `posixpath` and `ntpath` disagree: the drive designator. Both prior fixes remain effective on their own terms; this variant survives them for an independent reason.\n\n## Details\n\nThe root cause is the same `posixpath` / `os.path` mismatch: resolution is done with `posixpath`, confinement is checked with `os.path`, which is `ntpath` on Windows.\n\n```\n# mako/lookup.py -- resolution\n247:  srcfile = posixpath.normpath(posixpath.join(dir_, u))   # posixpath, always\n248:  if os.path.isfile(srcfile):                             # ntpath on Windows\n\n# mako/template.py -- confinement\n268:  u_norm = os.path.normpath(u_norm)                       # ntpath on Windows\n269:  if u_norm.startswith(\"..\"):               ","public_affected_ranges":["<= 1.4.1"]}],"null_published_at":"2026-11-01T01:03:56.618Z","source_updated_at":"2026-10-05T23:42:03.000Z","source_disclosed_at":"2026-10-05T23:42:02.000Z","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":"2026-11-01T00:59:16.959Z"}],"next_cursor":null,"snapshot_revision":"42594"}